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 ('5db3441222f2b9cb0be50fa5d6be3650','0','3.16.67.54','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716342604','formmail.php?userid=116&sid=0a58426ddbf56b3f6f2d458a22e88260','0','0','')
mysql error: Duplicate entry '5db3441222f2b9cb0be50fa5d6be3650' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 03:50
Script: /formmail.php?userid=116&sid=0a58426ddbf56b3f6f2d458a22e88260
Referer: