Yes the message is coming back continuously, I also have a Connection refused message :
[12-Jul-2024 14:38:34 UTC] PHP Warning: unserialize(): Error at offset 0 of 15 bytes in /xxxxx/xxxxx/domains/xxxxx/public_html/wp-content/plugins/bulletproof-security/bulletproof-security.php on line 237
[12-Jul-2024 14:38:39 UTC] Connection refused