Logfile reports: Exception HMAC does not match

My NC 28.0.5 reports at /index.php/settings/admin/logging a failure at “no app in context”:

Exception HMAC does not match.
Could not decrypt or decode encrypted session data

I do not have an idea, what I have to do in order to solve this problem. Therefore, I am thankful in advance for any support.

What do I have to do?

In detail:

{“reqId”:“bJLsWlXbpMRdzNchknqJ”,“level”:3,“time”:“2024-04-29T17:28:07+00:00”,“remoteAddr”:“89.187.164.153”,“user”:“–”,“app”:“no app in context”,“method”:“GET”,“url”:“/lv.php”,“message”:“Could not decrypt or decode encrypted session data”,“userAgent”:“–”,“version”:“28.0.5.1”,“exception”:{“Exception”:“Exception”,“Message”:“HMAC does not match.”,“Code”:0,“Trace”:[{“file”:“/usr/www/users/glombim/lib/private/Security/Crypto.php”,“line”:119,“function”:“decryptWithoutSecret”,“class”:“OC\Security\Crypto”,“type”:“->”,“args”:[“*** sensitive parameters replaced “]},{“file”:”/usr/www/users/glombim/lib/private/Session/CryptoSessionData.php",“line”:90,“function”:“decrypt”,“class”:“OC\Security\Crypto”,“type”:“->”,“args”:[" sensitive parameters replaced ***”]},{“file”:“/usr/www/users/glombim/lib/private/Session/CryptoSessionData.php”,“line”:67,“function”:“initializeSession”,“class”:“OC\Session\CryptoSessionData”,“type”:“->”},{“file”:“/usr/www/users/glombim/lib/private/Session/CryptoWrapper.php”,“line”:112,“function”:“__construct”,“class”:“OC\Session\CryptoSessionData”,“type”:“->”},{“file”:“/usr/www/users/glombim/lib/base.php”,“line”:449,“function”:“wrapSession”,“class”:“OC\Session\CryptoWrapper”,“type”:“->”},{“file”:“/usr/www/users/glombim/lib/base.php”,“line”:705,“function”:“initSession”,“class”:“OC”,“type”:“::”},{“file”:“/usr/www/users/glombim/lib/base.php”,“line”:1200,“function”:“init”,“class”:“OC”,“type”:“::”},{“file”:“/usr/www/users/glombim/index.php”,“line”:37,“args”:[“/usr/www/users/glombim/lib/base.php”],“function”:“require_once”}],“File”:“/usr/www/users/glombim/lib/private/Security/Crypto.php”,“Line”:158,“message”:“Could not decrypt or decode encrypted session data”,“exception”:,“CustomMessage”:“Could not decrypt or decode encrypted session data”},“id”:“662fd920e8163”}