Calc - Can't open Tools-Options

Hi, following are the data of my LO system:

Build ID: 13edaaa12f25de343fce136064e27da66c1c4fa4
CPU threads: 4; OS: Linux 3.16; UI render: default; VCL: gtk2;
Locale: en-US (en_US.UTF-8); Calc: group threaded

as you can see it is an outdated version but it is the last one that I can use as with the following ones every time I have to use Tools-> Options LO freezes without any errors.
It is possible that it has deleted some external file (python or dialect) but I have not the faintest idea what it could be.

Thanks for your patience