I did some modding about a year ago and since then I have not seen one crusade get called. I have tried everything I can think of to rectify this situation but have been unsuccessful. Here is the game error log:
Spoiler Alert, click show to read: 
mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.735 [game.script.exec] [trace] exec <set_event_counter> at line 13900 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.735 [game.script.exec] [trace] exec <if> at line 17013 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.735 [game.script.exec] [trace] exec <if> at line 17026 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.735 [game.script.exec] [trace] exec <spawn_character> at line 17042 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.747 [game.script.exec] [trace] exec <console_command> at line 17043 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.748 [game.script] [error] Script execution error for <console_command>, at line 17043, in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt:
give_trait The_Dark_Lord NaturalPriestSkill 2
err: character not found

22:57:36.748 [game.script.exec] [trace] exec <console_command> at line 17044 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.748 [game.script] [error] Script execution error for <console_command>, at line 17044, in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt:
give_trait The_Dark_Lord StrongFaith 4
err: character not found

22:57:36.748 [game.script.exec] [trace] exec <console_command> at line 17045 in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt
22:57:36.748 [game.script] [error] Script execution error for <console_command>, at line 17045, in mods/Third_Age_3u/data/world/maps/campaign/imperial_campaign/campaign_script.txt:
give_trait The_Dark_Lord PriestLevel 2
err: character not found
I have also ran the Bovi checker and it came up with the following two results pertaining to this issue.
Spoiler Alert, click show to read: 
CS 17012: Character has owner faction papal_states, which does not exist.
CS 17012: Character has unrecognized type priest for faction papal_states,.
CS 17024: Character has owner faction papal_states, which does not exist.
CS 17024: Character has unrecognized type priest for faction papal_states,.
CS 17038: Character has owner faction papal_states, which does not exist.
CS 17038: Character has unrecognized type priest for faction papal_states,.

and this a bit further down.

CS 17012: Character of faction papal_states, cannot have name checked, cannot find any names defined for that faction! Wrong faction?
CS 17024: Character of faction papal_states, cannot have name checked, cannot find any names defined for that faction! Wrong faction?
CS 17038: Character of faction papal_states, cannot have name checked, cannot find any names defined for that faction! Wrong faction?
Lastly here is the portion of the campaign_script:
Spoiler Alert, click show to read: 
;######################### Pope Sauron
declare_counter go_pope
;set_counter go_pope 1 ; set here for testing

monitor_event PreFactionTurnStart FactionType papal_states
create_unit Sauron, Mordor Orcs Mercs, num 3, exp 6, arm 0, wep
terminate_monitor
end_monitor

monitor_event PreFactionTurnStart FactionType papal_states

;Dunedain Jihad submod: allow invasions to start early
if I_EventCounter djs_activate_early_invasions_accepted == 1
and I_TurnNumber == 28 ;28 = visible in player's turn 29 = game turn 30
; spawn_character papal_states, The_Dark_Lord, priest, age 18, x 507, y 480
spawn_character papal_states, The_Dark_Lord, priest, age 18, x 504, y 481
console_command give_trait The_Dark_Lord NaturalPriestSkill 2
console_command give_trait The_Dark_Lord StrongFaith 4
console_command give_trait The_Dark_Lord PriestLevel 2
set_counter go_pope 1
terminate_monitor
end_if

;original conditions
if I_TurnNumber >= 46
and RandomPercent <= 8
; spawn_character papal_states, The_Dark_Lord, priest, age 18, x 507, y 480
spawn_character papal_states, The_Dark_Lord, priest, age 18, x 504, y 481
console_command give_trait The_Dark_Lord NaturalPriestSkill 2
console_command give_trait The_Dark_Lord StrongFaith 4
console_command give_trait The_Dark_Lord PriestLevel 2
set_counter go_pope 1
terminate_monitor
end_if

end_monitor

monitor_event PreFactionTurnStart FactionType papal_states
and I_CompareCounter go_pope > 0
and not I_CharacterExists The_Dark_Lord
; spawn_character papal_states, The_Dark_Lord, priest, age 18, x 507, y 480
spawn_character papal_states, The_Dark_Lord, priest, age 18, x 504, y 481
console_command give_trait The_Dark_Lord NaturalPriestSkill 2
console_command give_trait The_Dark_Lord StrongFaith 4
console_command give_trait The_Dark_Lord PriestLevel 2
end_monitor

monitor_event PreFactionTurnStart FactionType papal_states
and Treasury > 15000
add_money papal_states -10000
end_monitor
Other then coordinates this script has been unchanged for ten plus years. Any help will be most appreciated.