This can be also counted as a proof:

Once admin in telegram bounty group said that rewards will be distributed to Payaccept dashboard. If I'm not mistaken, since April dashboard page showed "500 SERVER ERROR" message. Now it works, but I cant login into my account. I got "Whoops! Something went wrong. These credentials do not match our records." message, and when I try to recover my password I get "500 SERVER ERROR" message again.

Payaccept is a vicious circle of problems for bounty hunters and airdrop participants.