Read somewhere that you need to reupload the mod for the crashing to stop, hopefully this fixes it.

Changelog Pre 2.5

1.1

• Added west and east african, zoroastrian, pagan and muslim localisations
  
• Changed Doge and Serene Doge to First Mayor or Voivode and High Chancellor in german related and slavic related cultures
  
• Changed Doge to Lord Magistrate in latin related cultures (except italian)
  
• Changed Irish localisations
  
• Changed certain Lord Mayor titles
  
• Added Project Balance, Viet and PB+Viet compatible versions

2.0

• Added Norse localisations
  
• Localised the High Priest and High Priestess titles in various pagan religions
  
• Added Mordvin and Samoyed localisations

2.1

• Changed the irish king title from high king to overking and the emperor title from Impire to Ard Ri to fix the weird appearance of petty high kings.
  
• Added roman titles for those who want more immersion if playing as a roman (No roman characters ingame, you will need the ruler designer)

2.2

• Added Viet and PB compatible versions
  
• Made a few bugfixes

2.3
General Changes

• Typo and bug fixes
  
• Complete French translation
  
• Grand Princes now called High Chancellors or Federal Chancellors and rule over a confederation (With a few exceptions)
  
• Most Prince Mayors now called Chancellors
  
• Republican Chancellors now called Ambassadors
  
• Republican Councillors now get their proper cultural localisations, this fixes a bug in vanilla ck2 where republican councillors had no cultural/religious localisations
  
• Hungarian Dukes are now called Bans and rule over a Bannat
  
• Iberian barons are now called Hidalgos
  
• Russian Kings and Dukes are now called Grand Knyazs and Knyazs
  
• German Barons are now called Burgraves and rule over a Burgraviate
  
• Polish barons are now called Castellans and rule over a Castellany
  
• Added unique titles (from Barons to Emperors) for the sinic cultures in Viet

West Germanic

• English Grand Princes are now called Lord Protectors
  
• Saxon Lord Mayors and Mayors now called Shire-Reeves and Reeves
  
• Saxon Barons now called Thegns

West African

• Empresses now called Mansa Quasa
  
• Kings and Queens are called Faama and Quasa
  
• Prince Mayors now called Maghan
  
• Dukes and Duchesses now called Farba and Farbasa
  
• Counts and Countesses now called Farin and Farina

South Slavic

• Croatian dukes are now called Bans and rule over a Bannat
  
• Bulgarian and Serbian emperors now called Tsars

Pagans

• Finnish pagan religion now called Finnic and Suomenusko when reformed
  
• Norse pagan religion now called Asatru when reformed
  
• Baltic pagan religion now called Baltic and Romuva when reformed
  
• Slavic pagan religion now called Rodonovery when reformed
  
• Altaic pagan religion now called Altaic and Tengri when reformed
  
• West African pagan religion now called Akan when reformed
  
• Finnish pagan head priests now called Päänpappi and Päänpappitar
  
• Baltic pagan head priests now called Kriwe and Kriwe Ponia
  
• Slavic pagan head priests now called Hlava Knez and Hlava Knazka
  
• West African pagan head priests now called Kungo Hogon and Musoo Hogon
  
• West African pagan head priests now called Quetzalcoatl
  
• Norse pagan Hierophants and Archpriests now called Allsherjargodi and Hofgodi
  
• Norse pagan Counts now called Thanes
  
• Pagan Republics are now called Elderships and ruled over by Princes
  
• Added unique Baltic pagan imperial titles, they are now Karalui Karaluis (King of Kings) and they rule over a High Kingdom
  
• Baltic pagan kings, dukes and counts now called Grand Kunigais, Kunigais and Bajoras
  
• Hellenic pagans now use Roman titles

North Germanic

• Norse and Norse-Gael Lord Mayors and Mayors now called Lagman and Alderman
  
• Norse Gael Kings, Dukes, Counts and Barons now called Kings, Jarls, Tigernas and Þegns

Muslim

• Fixed a bug where the unique title for muslim king tier republics did not apply
  
• Emperor tier theocracies now called Grand Caliphates and are ruled by a Grand Caliph
  
• Arabic and Iranian Patricians now respectively called Rais and Pashas

Latin

• Latin Grand Mayors no longer called Lord Magistrates
  
• Roman Baronesses now called Dominas
  
• Roman Lord Mayors and Mayors now called Praefectus Urbanus and Praefectus
  
• Italian and Sicilian Lord Mayors now called Podestas

Finno-Ugric

• Finnish and Lappish dukes are no longer called Jarls
  
• Added Latvian based unique imperial titles for the Ugric-Baltic and Komi cultures
  
• Added finnish and hungarian based unique imperial titles for the Samoyed and Mordvin

Christian

• Theocratic empires now called See
  
• King-Bishops are now called Patriarchs and rule over a Patriarchate

Celtic

• Irish counts and Barons are now called Tigernas and Chiefs and rule over a Tuatha and a Tuath
  
• Scottish Dukes and Counts are now called Mormaers and Thanes, they rule over a Mormaerdom and a Thanage
  
• Scottish Grand Mayors, Lord Mayors and Mayors are now called Princes, Lord Provosts and Provosts
  
• Welsh Grand Mayors no longer called First Mayors
  
• Welsh Counts and Barons are now called Teyrns and Lords, they rule over a Lordship and a Castle
  
• Breton Grand Mayors no longer called Lord Magistrates
  
• Pictish Feudal titles now Wledig Uchel/Overking/Mormaer/Teyrn/Chief

Byzantine

• Non-Greek Grand Mayors no longer called Lord Magistrates
  
• Armenian dukes are called Meliks and they rule over a Melikdom
  
• Georgian Emperors and Empresses are now called Mepe-Mepeta and Dedopali-Dedoplebis

Baltic

• Fixed Lettigalish culture using Ugric-Baltic localisations
  
• Added unique latvian based lettigalish imperial titles
  
• Lettigalish dukes are called Princes
  
• Lithuanian and Lettigalish Grand Mayors are called Voivodes

2.4:
General:

• Turkish Patricians now called Pashas
  
• Bannat now called Banate (Duchy)
  
• Fixed Serbian Tribune title not appearing properly (City King)

Zoroastrian:

• Shahanshah rules over a Atash i-Shahanshahdom (Temple Empire)
  
• Dastur i-Shah rules over a Atash i-Shahdom (Temple Kingdom)
  
• Dastur rules over a Atash i-Vahram (Temple Duchy)
  
• Mobad rules over a Atash i-Adaran (Temple County)
  
• Herbad rules over a Atashkada (Temple Barony)

Iranian:

• Banebshenan Banebshen (Female Empress)
  
• Shahzada (Prince)
  
• Shahzadokth (Princess)
  
• Shahanshah (City Emperor)
  
• Sardar-i-Bozorg rules over a Shahr-i-Bozorg (City Kingdom)
  
• Sardar rules over a Shahr (City Duchy)
  
• Dihqan-i-Bozorg (City Count)
  
• Pasha (Patrician)

Romanian:

• Cezar and Cezarina (Emperor and Empress)
  
• Consuls rule a Senate (City Empire)
  
• Tribunes rule over a Grand Republic (City Kingdom)
  
• Bans rule over a Banate (Duchy)
  
• Voivode (City Duchy)
  
• Boyars rule over a Boyardom (Barony)