This is a factory mistake(second) contact the company that made it just to see if they will make it good.I was a weaver in a textile factory for year 6 years.A certain amount of mistakes were allowed per 10 to 15 yards. If this is colored woven piece you can not straighten it out. If it is a print(pattern sprayed on fabric with multi-color dyes) you may cut it and tack down damp and work to srtaighten it some.