Which anti-virus program? I got 9.17 officially allow-listed with Windows Defender so that shouldn't be flagging it.
If you got your build of Playscii from here on itch.io, it should be safe to run. It looks like Bitdefender's submission/appeals process for false positives is limited to "enterprise" customers, so I can't really do anything about the detection from my end. Try telling Bitdefender to add an exception for it: https://www.bitdefender.com/consumer/support/answer/13427/