Thank you @Amandeep Kumar for your support. I am facing the same problem and hopeful that the portable version can be updated and solve this problem as well, so I don't even have to install it.
Looking forward for updates.
I urge the Enpass team to update the portable version to 6.11. I rely on it heavily on my work computer and it has been several weeks that I am not able to sync with OneDrive. MacOS and iOS are syncing fine
Thank you