change a style now there 2 styles combined/register issues

I was looking at the styles on the forum
http://aisforautism.co.uk/now there is a combination of two styles neither will go any ideas,i have tried deleting all styles and trying differant styles it wont change at all
also members trying to join are typing the code correctly,(i have tried myself) and it says did not type the captha correctly but we did

and now when i try to change a setting it say this
Your session timed out while posting.  Please go back and try again.when i am signed in and continue

I have done the style but registering members is still a problem no on can register
and its still not letting me change any setting as above

I'll confirm that I can't register on your forum either, it's a bug that CreateAForum has to fix.

thank you xboi209

carnt login without using fb either
it wont resend passwords,etc

any news on this please

anything at all