Today Insync stopped working with this error:
I had I think a free perpetual license since I was a beta tester back in 2017.
Has the time to pay come?
Thanks in advance
Same here.
I posted less than a minute ago the same issue.
Same problem here with the beta tester licence.
Duplicate: License Expired Error (OneDrive Account)
We truly apologize for any inconvenience this has caused! For context: our licensing server stopped responding last night due to excessive load. Our engineers have fixed this and it shouldn’t happen again.
If you are still experiencing this issue after refreshing your license, please send an email to support@insynchq.com so we can assist you accordingly.
Thank you!
Apparently this problem is rolling around, and it has now come and hit me. 
But glad to see that it comes and goes quickly: I just needed to simply restart the app, and it’s gone. 
Already posted in the other thread - same here, for Google Drive on Fedora 42.
Just got nicked… looks like it’s fix after calling “refresh license” a few times.
It has now happened to me 3 times in 2 days. I get the message “You have puchased and UNKNOWN plan.” every time I start up Plasma windows.
I have to use the alternative login to get connected again. That’s the one where you copy an URL, paste it into a browser, sign in, then copy a code back to the Insync app. I have to do that for every one of my Google accounts.
I emailed support, but haven’t had a reply.
Hi everyone! We can confirm that the issue reappeared within the last 24 hours. Our engineer was alerted as soon as it was discovered, and has already deployed fixes. If you refresh your license and the issue comes back, please send a direct email to support@insynchq.com so we can assist you accordingly.
Thank you very much, and our sincerest apologies for the huge trouble that this may have caused.
Hi @davidrnewman! I checked to see if we received a recent email from you but unfortunately don’t see any. 
I’ve sent you a direct message here – please check your inbox!