# Uncaught PHP Exception SymfonyComponentHttpKernelExceptionHttpException: "signature\_invalid" **URL:** \ **Category:** Product Support\ **Created:** [February 15, 2017, 5:36pm UTC](https://forum.mautic.org/t/uncaught-php-exception-symfonycomponenthttpkernelexceptionhttpexception-signature-invalid/7544 "2017-02-15T17:36:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Hasaan](https://avatars.discourse-cdn.com/v4/letter/h/a9a28c/32.png) [@Hasaan](https://forum.mautic.org/u/Hasaan)\ **Post date:** [February 15, 2017, 5:36pm UTC](https://forum.mautic.org/t/uncaught-php-exception-symfonycomponenthttpkernelexceptionhttpexception-signature-invalid/7544/1 "2017-02-15T17:36:09Z")
Alright guys… Had a feeling that next road block is near. Here is the problem I am facing… I am trying to integrate thriveleads with mautic via API SECOND time… and its giving me “unknown error” message… I was able to connect it first time without any problem but something in thrive lead plugin wasn’t working so I thought may be its with mautic connection I deleted it… and now when I am trying to connect again… no luck… I went to system logs in mautic and noticed two kinds of errors repeating… 1: mautic.ERROR: Uncaught PHP Exception SymfonyComponentHttpKernelExceptionHttpException: “signature\_invalid” at [rootpath]/vendor/willdurand/oauth-server-bundle/Service/OAuthServerService.php line 174 {“exception”:"[object] (Symfony\Component\HttpKernel\Exception\HttpException(code: 0): signature\_invalid at [rootpath]/vendor/willdurand/oauth-server-bundle/Service/OAuthServerService.php:174)"} [] 2: mautic.CRITICAL: Uncaught PHP Exception InvalidArgumentException: “Method getTimezone not exists” at [rootpath]/app/bundles/CoreBundle/Entity/CommonEntity.php line 39 {“exception”:"[object] (InvalidArgumentException(code: 0): Method getTimezone not exists at [rootpath]/app/bundles/CoreBundle/Entity/CommonEntity.php:39)"} [] I tried deleting cache folder and trying again… but no change… What I am not understanding is that… I was able to connect without any problem… and now its not working… Any help please? ---
**Author:** ![Hasaan](https://avatars.discourse-cdn.com/v4/letter/h/a9a28c/32.png) [@Hasaan](https://forum.mautic.org/u/Hasaan)\ **Post date:** [February 15, 2017, 5:36pm UTC](https://forum.mautic.org/t/uncaught-php-exception-symfonycomponenthttpkernelexceptionhttpexception-signature-invalid/7544/2 "2017-02-15T17:36:09Z")
Alright guys… Had a feeling that next road block is near. Here is the problem I am facing… I am trying to integrate thriveleads with mautic via API SECOND time… and its giving me “unknown error” message… I was able to connect it first time without any problem but something in thrive lead plugin wasn’t working so I thought may be its with mautic connection I deleted it… and now when I am trying to connect again… no luck… I went to system logs in mautic and noticed two kinds of errors repeating… 1: mautic.ERROR: Uncaught PHP Exception SymfonyComponentHttpKernelExceptionHttpException: “signature\_invalid” at [rootpath]/vendor/willdurand/oauth-server-bundle/Service/OAuthServerService.php line 174 {“exception”:"[object] (Symfony\Component\HttpKernel\Exception\HttpException(code: 0): signature\_invalid at [rootpath]/vendor/willdurand/oauth-server-bundle/Service/OAuthServerService.php:174)"} [] 2: mautic.CRITICAL: Uncaught PHP Exception InvalidArgumentException: “Method getTimezone not exists” at [rootpath]/app/bundles/CoreBundle/Entity/CommonEntity.php line 39 {“exception”:"[object] (InvalidArgumentException(code: 0): Method getTimezone not exists at [rootpath]/app/bundles/CoreBundle/Entity/CommonEntity.php:39)"} [] I tried deleting cache folder and trying again… but no change… What I am not understanding is that… I was able to connect without any problem… and now its not working… Any help please? ---
**Author:** ![Hasaan](https://avatars.discourse-cdn.com/v4/letter/h/a9a28c/32.png) [@Hasaan](https://forum.mautic.org/u/Hasaan)\ **Post date:** [February 15, 2017, 8:56pm UTC](https://forum.mautic.org/t/uncaught-php-exception-symfonycomponenthttpkernelexceptionhttpexception-signature-invalid/7544/3 "2017-02-15T20:56:07Z")
Thanks @MxyzptlkFishStix for reaching out. I am running 2.6.0 version. OK the main issue I had was thrive leads not integrating that for some reason was a PC cache issue and I was able to connect to mautic via API without any issue under incognito mode. However, these two issues are still appearing in log I thought they are related thats why pasted them. Regarding the patch… I wanted to be sure that it is related to it as I had the same github page bookmarked. So I should go ahead with it right? ---
**Author:** ![vnrxsv](https://avatars.discourse-cdn.com/v4/letter/v/8edcca/32.png) [@vnrxsv](https://forum.mautic.org/u/vnrxsv)\ **Post date:** [September 15, 2017, 12:38pm UTC](https://forum.mautic.org/t/uncaught-php-exception-symfonycomponenthttpkernelexceptionhttpexception-signature-invalid/7544/4 "2017-09-15T12:38:32Z")
Hello @Hasaan, managed to solve? I have the same problem.