Soda PDF Pro is suddenly reported a threat containing Adware.sig

I have been using this Soda PDF Pro in Windows 10 for a year now for splitting and merging PDF files.
This week this app was suddenly identified as a Adware.sig threat quarantining components of the software making it unusable.
This looks like a false positive as no change/update was done.
Is there any way to mark a software as safe or trusted?

Hi Ran,

We're glad to help you with the info.
If you suspect that it is a false positive, you can submit a false positive request via this link.
Once you submit, a group of analysts will review the file & whitelist it, if it is found to be safe or goes through the clean notes of AVG.
Thank you for your understanding in advance!