xmage client not connecting to server in 1.4.15v0

ive updated to 1.4.15v0 and when i start up xmage it says "unable to connect to server expecting version 1.4.14v0" how do i fix this???? ive tried everything please help!!!
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https://www.slightlymagic.net/forum/viewtopic.php?f=70&t=19106
It says right here in the release post:Smugjarl782 wrote:how do i downgrade?
LevelX wrote:If you updated to a new version and want to revert back to the previous version you can set your xmage home (use custom) to e.g. "http://xmage.de/xmage1.4.14v0" (or similar URLs related to the release number) in the settings of the launcher and restart. (Don't forget to set it back to "http://xmage.de/xmage" if you want again update to the newest version later.)
I was about to ask what URL had you actually used and what was the exact message you were getting now, but it looks like you made an entirely different problem of its own now: viewtopic.php?f=70&t=19107Smugjarl782 wrote:i have tried doing that and the same issue keeps happening