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 ('7ee29bca04f088489eb08b2f8532909c','0','18.189.182.96','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715937209','calendar.php?sid=6ee39e3bdea8138a3961fb84438cf4e4','0','0','')
mysql error: Duplicate entry '7ee29bca04f088489eb08b2f8532909c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 17.05.2024 @ 11:13
Script: /board/calendar.php?sid=6ee39e3bdea8138a3961fb84438cf4e4
Referer: