Issues with Prefix - When created* it shows blank

[محروم.كوم]

Hello.
I've tried adding new prefixes on my vBulletin board. However* I've been running into issues such as:
Creating a new prefix set will not display anything* as shown in the attachment. Yes* I've filled in all the fields* also created prefixes and they still show up as blank.
I tried to edit my existing tag which I created ages ago but it still remains the same after I click submit.

The only apparent explanation to how the problem arised is when I moved servers.
I don't have any prefixes mod or any mods relating to prefixes.

Thank you in advance!

Attached Images

• issue1.png‎ (16.0 KB)

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