IPTV expired on ZGemma H.2S

[chopper1]

my 12 months whoohsbuild IPTV sub has expired on the ZGemma H.2S receiver

not sure whether to renew the sub would like to test another one, is it possible to test or load another IPTV using the putty program or will i need to delete whooshbuild first?
If so do i go to menu-plug-ins select Whooshbuild V6.000, and delete it?

many thanks