When I had this problem in toolnix 4.4 I upgraded to toolnix 4.9 and the fix was press control p and turn off automatic updates and it was solved for that version.
Now in toolnix 4.9 I again have the problem so I turned off automatic updates but the problems persisted so uninstall and then Synaptic install Toolnix version 5.5 and crash, turn off updateting and crash, crash and crash!!
I also tried via ubuntu software but it gave me dependencies not met :
I am running Xubuntu but I forgot what version so I guess its latest stable???