can any one help me new to this but it will not let me in to games i have paid for

You need to be more specific than that. What games are you talking about and what system are you playing on. What is the problem and what error messages are you getting?

Have you tried installing the Galaxy client that will do most of this for you?

Also you might want to contact customer service that can be found here:
https://support.gog.com/hc/en-us/categories/201400969-Game-Technical-Issues

blind guess:
game page -> more -> manage installation -> verify / repair

the games are eye of the behoilder witch have been playing till now

You like Eye of the Beholder, which you have been paid for. At the moment there is an issue with this game you have, however the details are a mystery.
Could you please re-read your own posts again and tell me if I'm missing something.

The games won;t run due to GOG updating DOS games recently to beable to cloud save. Reinstalling or Verify/repair will fix this.

Good guess indeed, probably you nailed it. But there is no clear indication from OP. My offline installers weren't affected for instance. My point to OP was: speak the whole truth.

Verify your installation.

Edit: ooops, sorry - wrong game.

thanks guys up and running again