colin.stephane,

1) SSH from PC. p.ex. with WinSCP or other.

2) Problem in plugin "libbirthdayplugin.so" (/usr/lib/contactsd-1.0/plugins/). Probably have to change the source code for "contactsd".

Now there are so:
setStartOffset(KCalCore :: Duration( -36 * 3600 /* seconds */));

..

P.S. In libbirthdayplugin.so
offset 00053114

code for change C0 15 00 E3 00 20 A0 E3 FE 1F 4F E3

Its number FFFE05C0 = -129600

But correcting any digit in this number -> crashing work of plugin.