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 ('8626a39b0701532bb0dc807eef22c005','0','3.12.161.77','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715418963','profile.php?userid=238&sid=c8193c0b98f60ccb3fec70c1fb3f5bce','0','0','')
mysql error: Duplicate entry '8626a39b0701532bb0dc807eef22c005' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 11.05.2024 @ 11:16
Script: /profile.php?userid=238&sid=c8193c0b98f60ccb3fec70c1fb3f5bce
Referer: