SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('fe8e2c88cf85b0596173a2fe1416a27f','0','3.135.190.101','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714548655','profile.php?userid=8638&sid=c0fd2036c8e118e3acbebc3290ec38bd','0','0','')
mysql error: Duplicate entry 'fe8e2c88cf85b0596173a2fe1416a27f' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 01.05.2024 @ 03:30
Script: /wbb2/profile.php?userid=8638&sid=c0fd2036c8e118e3acbebc3290ec38bd
Referer: