Help: wireshark crashes after adding preference code to my dissector

I wanted to add some options in the preference window for my dissector. This is the code I have added to the "proto_register" function:

module_t *dan_lte_sdk_module;
proto_dan_lte_sdk = proto_register_protocol ("DAN LTE SDK Protocol", "Dan LTE SDK", "dan_lte_sdk");
register_init_routine(dan_defragment_init);
proto_register_field_array (proto_dan_lte_sdk, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
register_dissector("dan_lte_sdk", dissect_dan_lte_sdk, proto_dan_lte_sdk);
dan_lte_sdk_module = prefs_register_protocol(proto_dan_lte_sdk, NULL);
prefs_register_bool_preference(dan_lte_sdk_module, "Dissect_MAC_Payload",
"Dissect MAC Layer from Data Payload",
"In Uplink and Downlink data packets, dissect MAC heaser layer "
"Disabling MAC dissection will disable RLC dissection automaticly",
&global_dan_lte_sdk_dissect_MAC);
prefs_register_bool_preference(dan_lte_sdk_module, "Dissect_RLC_Payload",
"Dissect RLC Layer from Data Payload",
"In Uplink and Downlink data packets, dissect RLC heaser layer ",
&global_dan_lte_sdk_dissect_RLC);

It works fine until I add those two (even one of them) “prefs_register_bool_preference” functions. What did I do wrong?

I get a “Runtime Error!” for wireshark.exe Removing those function fixes it back.

Thanks

Yosi