SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a5333a466f9b3bb106ca6e13e5c54ecf','0','18.221.165.246','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715107579','misc.php?action=imprint&sid=40501bc7d465dcdc7038fbc0de8a571d','0','0','')
mysql error: Duplicate entry 'a5333a466f9b3bb106ca6e13e5c54ecf' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 20:46
Script: /misc.php?action=imprint&sid=40501bc7d465dcdc7038fbc0de8a571d
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=40501bc7d465dcdc7038fbc0de8a571d