Plus 44 has released an explanation for the cancellation of their European tour

Canceling the tour was not an easy decision, not something we wanted to do, and not something that we take lightly. We didn't cancel our first european tour last winter even when travis was playing every single show with a broken arm, and we didn't cancel the next european tour after travis was ordered home by his doctors. Touring and playing shows is the foundation of +44. Sorry to anyone who had tickets to the shows this month. We were absolutely stoked to be headed over for a third tour, but this time it just wasn't possible.

The band also noted that they're beginning to write the follow-up to last year's When Your Heart Stops Beating: "We've got a bunch of ideas; a studio full of instruments, microphones, and effects; and a soundboard from the 1970's. We're excited to start putting together a new album."