Please create a ticket to support at
https://odin.com/hcap/support/request/ .
You may have free support, please check what kind of Plesk license you use for available support options at
http://kb.odin.com/en/121580 .
If there’s no free support in your case, you can order Plesk per-incident support at
http://odin.com/hcap/support/buy-support/. Support team will contact you as soon as purchase is processed, and they will do the best to resolve it.