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 ('5bdc61d5a89f0619ae79477a5db99f3e','0','18.188.216.249','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717353816','profile.php?userid=2232&sid=1552f922131f4586145f2f57b00dc9e6','0','0','')
mysql error: Duplicate entry '5bdc61d5a89f0619ae79477a5db99f3e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 02.06.2024 @ 20:43
Script: /profile.php?userid=2232&sid=1552f922131f4586145f2f57b00dc9e6
Referer: