Did you find a solution to this problem? I am facing the same issue. The only thing I have changed is the agent IP, and as you said, the error occurs randomly...
Reasons:
RegEx Blacklisted phrase (3): Did you find a solution to this problem
Low length (1):
No code block (0.5):
Me too answer (2.5): I am facing the same issue
Contains question mark (0.5):
Single line (0.5):
Starts with a question (0.5): Did you find a solution to this