migration to O2Switch blocked

Hello,

I’m experiencing the same issue mentioned in a previous post.

I’m trying to migrate my website from Nuxit to o2switch (cPanel), but I receive the following error:
“Our requests are getting blocked at your source site.”

As a test, I successfully migrated the same site from Nuxit to Infomaniak, so the problem seems specific to o2switch.

I’ve already disabled some security features on the o2switch side, but the error still occurs.
Could you please provide the IP addresses that I should whitelist?

The source website is: https://www.disini-hotel.com/

Thank you!