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 ('ecc2be5095fc263ef2cdc3e09658a5de','0','18.117.148.105','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715374358','board.php?boardid=142&sid=00e386dd4b6453727f8ac52d988c2d7a','0','0','')
mysql error: Duplicate entry 'ecc2be5095fc263ef2cdc3e09658a5de' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 22:52
Script: /board.php?boardid=142&sid=00e386dd4b6453727f8ac52d988c2d7a
Referer: http://wehrbauten.de/board.php?boardid=142&sid=00e386dd4b6453727f8ac52d988c2d7a