Hi,
Sorry to hear you are having issues.
To clarify, the latest version available on itch.io is v0.9.0. Due to updated platform guidelines and nsfw payments getting banned, no newer paid versions have been released on itch.io since then, due to which 0.10.1 is no longer available for purchase, but if you have purchased 0.10.1 here I don't think this should be invalidated as its still available/uploaded just not publicly visible for purchase.
All paid versions starting from v0.10.1 onward are now released exclusively on Patreon.
As always, once a new version is released, the previous version becomes free and is made available on itch.io as free download. The latest versions remain paid builds untill a newer build is released.
You can comment here with more details for the build version or reach me out on radicalpixelgames@gmail.com and I can help check this further.