RSS – Yet another…!

Hello:

I’m having an unusual setback of sorts with my RSS feed.

When I tried to enlist my blog through an aggregator, it declined
saying, my Rss feed aren’t valid & the feed that was shown looked like
this

https://vassan.kollidam.com/feed?=rss2

instead of

“ https://vassan.kollidam.com/?feed=rss2 “

any suggestions to correct this, I wonder.

Sure would appreciate any help.

Thanks for your time.

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This started after I my recent upgrade from WP 1.5 to 2.30