This is how to get it replaced for free. Here's the link for customer service.
https://www.fiskars.com/en-us/custom...ice/contact-us
Scan a pic of the cutter. Tell them what's wrong. I've had problems with cutters and they sent me replacements free of charge. In fact I've done it at least 3 times. Dropped a ruler and a corner was snapped off...replace FoC. Small rotating mat...ened up with grooves...replace FoC Takes a while but worth the wait.