I get the error message 500 "Internal Server Error"

Your software
My Mautic version is: 3.1.1
My PHP version is: 7.3.x

Your problem
My problem is:
I get the error message 500 “Internal Server Error”

These errors are showing in the log:
[2020-10-02 10:37:39] mautic.ERROR: UPDATE CHECK: Could not fetch a release list: 403 (rate limit exceeded)
[2020-10-02 12:00:47] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}
[2020-10-02 12:00:57] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}
[2020-10-02 12:01:23] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}
[2020-10-02 12:11:38] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}
[2020-10-02 12:11:45] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}
[2020-10-02 12:12:08] mautic.WARNING: PHP Warning - “continue 2” targeting switch is equivalent to “break 2”. Did you mean to use “continue 3”? - in file /home/digb/www/newsletter/app/bundles/ReportBundle/Builder/MauticReportBuilder.php - at line 437 {“file”:"/home/digb/www/newsletter/vendor/composer/…/…/app/bundles/ReportBundle/Builder/MauticReportBuilder.php"}

Steps I have tried to fix the problem:

Have you cleared cache? If not I would do that.
Check out the upgrade guide
Upgrade error guide

And bookmark this for future reference.

What where you doing when this error happened?

Hi,
Thank you so much for your help, it’s working now !

Hicham