I accidentally put a old resource pack into my game and cant play anymore and tells me i crashed my game and wondering can you take away the resource pack away from my game please.

This is a bug tracker, not a support forum.

You can reset the resource packs by manually editing the options.txt file in the .minecraft folder. In order to remove all resource packs but the vanilla one, replace the line that starts with resourcePacks: with

resourcePacks:["vanilla"]