Recently reunited industrial metallers Fear Factory have been forced to cancel their entire European tour due to legal issues surrounding the use of the Fear Factory name.The band - which features original singer Burton C Bell and guitarist Dino Cazares - pulled-out of Spain's Metalway Festival yesterday (June 21) and have also cancelled their appearance at the UK's Sonisphere festival (which takes place on August 1 and 2 at Knebworth) as well as their entire German tour which was due to kick off on August 3.