Recently, when logging into my forum, it is redirected to adware/malware type links, or I get similar pop-ups.

http://translatorchat.forumotion.com/

How do I disable this?? I don't know how it started.

Hello

You can remove ad's from your forum by buying credits to have them removed for you and your members or you and all guests.

This is a yearly perches thou.

or if you are talking about problem ad's then you can report them here
https://help.forumotion.com/t145609-only-topic-ads-redirection-mobile-pc

 Other helpful links
https://help.forumotion.com/t147997-only-topic-malicious-inappropriate-ads
https://help.forumotion.com/t1219-credits-management

I have just looked at your forum and i see that your forum is still new and you have little members logging in on it.

The reason you are getting them popup's is down to your forum activity you have a really small number of members logging in each day and a small number of members.

To make this go away your need to get your forum more active then the popup's will go away.