Type error: Return value of PrestaShop\Module\Ps_metrics\Helper\PrestaShopHelper::getTokenFromAdminLink() must be of the type string, null returned

[lukyno15]

Hello, I have a problem, after logging into my superadmin account i have this error. I can log into other employees' accounts without problems and everything works. However, when I log into the superadmin account, i.e. the main account, it shows me this problem.
PS version -> 1.7.7.4
PHP version -> I had 7.4 and everything worked, but when I got this error, I tried to reinstall to 7.2, but the change didn't help.
Can you help me somebody, please?

[ctcamp]

Hi there

What worked for me is clearing the cache and disabling the module PS_metrics through my CPanel