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 ('f55a2e7d35052916484eeab8c0552fb3','0','3.147.83.8','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716833575','search.php?sid=38ddd17ecf169f9e0317d1ed867a1a45','0','0','')
mysql error: Duplicate entry 'f55a2e7d35052916484eeab8c0552fb3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 27.05.2024 @ 20:12
Script: /board/search.php?sid=38ddd17ecf169f9e0317d1ed867a1a45
Referer: