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 ('dd7c87798015f7c9fc72ff185d5559df','0','18.219.67.169','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716269519','jgs_galerie.php?sid=403893e401489f23e4689949c5c6622d','0','0','')
mysql error: Duplicate entry 'dd7c87798015f7c9fc72ff185d5559df' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 21.05.2024 @ 07:31
Script: /jgs_galerie.php?sid=403893e401489f23e4689949c5c6622d
Referer: