500 error, the site does not work after updates on v.3.15

[dr_brown]

🎯Description of the issue

the site does not work after updates on v.3.15

▶🚶‍Reproduction steps

1. automatic update
2. 500 server error

😢Unexpected result

js scripts do not work
white screen in the image section

in the admin section you can only go to the main page

rolling back to the previous version, please help

 

[Rodolfo]

Please provide the error log entry for the alleged error.

Must read - Common conflicting issues and error handling

Parse error: syntax error, unexpected '[', expecting ')' in ... This error is displayed when you run PHP < 5.5.0. Chevereto requires at least PHP 5.5.0 and works best with PHP 7.3. Chevereto error: Internal Server Error When you get this is because the system is hiding the actual stack trace...

chevereto.com

Check at the bottom where it explains what happens on a white page.

 

[dr_brown]

Hello!

I updated, and after turning on error display, I got this error:

Fatal error: Default value for parameters with a class type hint can only be NULL in /var/www/dr_brown/data/www/pickasso.info/app/vendor/jbroadway/urlify/URLify.php on line 49

 

[dr_brown]

Thank you help, updated php to 7.2.8 it worked ок! .