I found a workaround for the recent Chrome 45 bug.

1.) go to your InfCloud/CardDavMATE/CalDavZAP installation directory

2.) execute: wget https://www.inf-it.com/fixes/inf-it_chrome_workaround.diff

3.) execute: patch -p1 < inf-it_chrome_workaround.diff

4.) execute: ./cache_update.sh

Cheers,

JM

p.s.: the fix will be included in the 0.13.0 final