# Error spamming in Mautic log .. Need help to figure what causing this error **URL:** https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972 **Category:** Product Support **Created:** [August 5, 2022, 3:39pm UTC](https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972 "2022-08-05T15:39:15Z") **Posts on this page:** 4 **Page:** 1
### Author: ![techbill](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/techbill/32/8325_2.png) [@techbill](https://forum.mautic.org/u/techbill) #### Post date: [August 5, 2022, 3:39pm UTC](https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972/1 "2022-08-05T15:39:15Z")
**Your software** My Mautic version is: 4.4.1 My PHP version is: 7.4 My Database type and version is: MySQL 8 **Your problem** My problem is: This messages are spamming in Mautic log. Can anyone help me and tell me what it mean or what I need to fix to stop this error? These errors are showing in the log: (only copying and pasting few lines but it a repeat of the same lines in the log) ```auto [2022-08-05 10:19:57] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10128} [2022-08-05 10:19:57] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10135} [2022-08-05 10:19:57] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10130} [2022-08-05 10:19:57] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10132} [2022-08-05 10:20:01] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10129} [2022-08-05 10:20:06] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10128} [2022-08-05 10:20:06] mautic.ERROR: Invalid clickthrough value: Yjo4OntmOjk6ImZiaGVkZiI7Yjo1Ont2OjM7Zjo4OiJmemJ2eSI7djo0O3Y6NzE7fWY6ODoiZnpidnkiO3Y6NzE7Zjo3OiJmZ2JnIjtmOjU1OiI5NWZiZjE5NjE4Y2Y1MjI5Mzk2MzA4IjtmOjc6InlmYmUiO2Y6ODoiNTE2MjgiO2Y6MDoiZHViYWFmeSI7Yjo0OntmOjg6ImZ6YnZ5Ijt2OjcxO319 {"exception":"[object] (Mautic\\CoreBundle\\Exception\\InvalidDecodedStringException(code: 0): The string b:8:{f:9:\"fbhedf\";b:5:{v:3;f:8:\"fzbvy\";v:4;v:71;}f:8:\"fzbvy\";v:71;f:7:\"fgbg\";f:55:\"95fbf19618cf5229396308\";f:7:\"yfbe\";f:8:\"51628\";f:0:\"dubaafy\";b:4:{f:8:\"fzbvy\";v:71;}} is not a serialized array at /home/edited/app/bundles/CoreBundle/Helper/ClickthroughHelper.php:37)"} {"hostname":"*","pid":10132} ``` ---
### Author: ![thiagoroberth](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/thiagoroberth/32/8929_2.png) [@thiagoroberth](https://forum.mautic.org/u/thiagoroberth) #### Post date: [December 21, 2022, 12:42pm UTC](https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972/2 "2022-12-21T12:42:22Z")
I’m having the same problem! ---
### Author: ![Yosu\_Cadilla](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/yosu_cadilla/32/6206_2.png) [@Yosu\_Cadilla](https://forum.mautic.org/u/Yosu_Cadilla) #### Post date: [February 21, 2023, 6:59am UTC](https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972/3 "2023-02-21T06:59:49Z")
There’s an open issue on Github, please guys go there and report your case if you have a couple minutes to spare… > > > \[//\]: # ( Invisible comment: > IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII…I > Before you create the issue: > IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII > Search for similar report among other reported issues. > Learn how to troubleshoot at https://www.mautic.org/docs/en/tips/troubleshooting.html > Use drag&drop to attach images or other files ) > > \## Bug Description > After sending emails that contains tracked links I often see such error messages in the log. > > Not all clicks end up in errors like this. So far I could not figure out what leads to this kind of clickthrough error. > Mautic is behind proxy, runs in docker container > Locale is set to hungarian UTF-8 > > > | Q | A > | --- | --- > | Mautic version | 2.14.1 > | PHP version | 7.0.28 > | Browser | Firefox 62.0.3 > > \### Steps to reproduce > 1. Create segment mail with tracked link > 2. Send mail to multiple recipients > 3. Wait for incoming clicks > > \### Log errors > \`\[2018-10-15 14:49:21\] mautic.CRITICAL: Uncaught PHP Exception InvalidArgumentException: "The string ,f.&..U"0U{,f....{f. > ..{.f.lzfj{z.f0.n...lzfj{f.4W.&..e.u/6t..ug.dd..dg.t.dtW.&..W92,..vz..ddd.dcW.&. zW0.,.a0..dzdg;f...{.f.h= > = is not a serialized array." at /var/www/html/app/bundles/CoreBundle/Helper/ClickthroughHelper.php line 42 \[\]\` > > \[//\]: # ( Invisible comment: > Please check for related errors in the latest log file in \[mautic root\]/app/log/ and/or the web server's logs and post them here. Be sure to remove sensitive information if applicable. ) ---
### Author: ![Yosu\_Cadilla](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/yosu_cadilla/32/6206_2.png) [@Yosu\_Cadilla](https://forum.mautic.org/u/Yosu_Cadilla) #### Post date: [February 21, 2023, 7:02am UTC](https://forum.mautic.org/t/error-spamming-in-mautic-log-need-help-to-figure-what-causing-this-error/24972/4 "2023-02-21T07:02:49Z")
This might point towards the problem/solution? >