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 ('e4a7876eadd95a0da11496c171352cb8','0','3.134.77.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714814455','search.php?action=user&userid=1&sid=63bbf4560595af9395eac428bbd5343c','0','0','')
mysql error: Duplicate entry 'e4a7876eadd95a0da11496c171352cb8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 11:20
Script: /search.php?action=user&userid=1&sid=63bbf4560595af9395eac428bbd5343c
Referer: