Error after upating matomo to 4.4

These errors are showed multiple times in all matomo pages,

WARNING: /home/WEBSITE/public_html/matomo/core/IP.php(81): Notice - Undefined index: proxy_ip_read_last_in_list - Matomo 4.4.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: Installation, Action: systemCheckPage, In CLI mode: false) 
*

and*

WARNING: /home/WEBSITE/public_html/matomo/core/CliMulti/Process.php(283): Warning - shell_exec() has been disabled for security reasons - Matomo 4.4.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: Installation, Action: getSystemCheck, In CLI mode: false)

the shell_exec() function is disabled by my hosting company and they say there is no way to enable it.

See:
Warning - shell_exec() has been disabled for security reasons - Matomo 4.4.0 - Support & Bugs - Matomo forums

And also:
Undefined index: proxy_ip_read_last_in_list - Support & Bugs - Matomo forums

Thanks, this helped me.