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 ('c855d6e60d31fab4749179f6de0c34d5','0','18.119.157.39','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715931745','profile.php?userid=11500&sid=1edc22070f8c81bb5b310bdb2c978cb2','0','0','')
mysql error: Duplicate entry 'c855d6e60d31fab4749179f6de0c34d5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 17.05.2024 @ 09:42
Script: /profile.php?userid=11500&sid=1edc22070f8c81bb5b310bdb2c978cb2
Referer: