mount and blade warband multiplayer keeps crashing

Rgl_post_warning_line: WARNING: Unable to find material mp_ui_host_maps_e for mesh mp_ui_host_maps_e1 Setting melee_damage_speed_power = 2.000000 Setting missile_damage_speed_power = 1.900000 Setting shield_penetration_factor = 3.000000 Setting shield_penetration_offset = 30.000000 Setting fall_damage_multiplier = 1.000000 Setting couched_lance_damage_multiplier = 0.650000 Setting horse_charge_damage_multiplier = 1.000000 Setting armor_reduction_factor_against_blunt = 0.750000 Setting armor_reduction_factor_against_pierce = 0.500000 Setting armor_reduction_factor_against_cut = 1.000000 Setting armor_soak_factor_against_blunt = 0.500000 Setting armor_soak_factor_against_pierce = 0.650000

Setting armor_soak_factor_against_cut = 0.800000 Setting damage_interrupt_attack_treshold_mp = 1.000000 Setting damage_interrupt_attack_treshold = 3.000000 Setting regulars_xp_multiplier = 3.000000 Setting Skill Prisoner Management Bonus = 5 Setting hero_wounded_treshold = 15.000000 Setting player_wounded_treshold = 5.000000 Setting Track Spotting Multiplier = 0.800000 Setting Seeing Range Multiplier = 6.500000 Received stats and achievements from Steam Here is my rgl_log.txt contents in case that helps solve the problem. I have not had any problems playing the game and it had never crashed until today, and I am unable to load my previous characters and continue to play.

I am running my game on a desktop computer with Ubuntu 14.04 圆4 installed. Very recently my version of Mount and Blade Warband on Steam has been crashing every single time I try to choose the 'Load Game' option in the main screen, or the 'Save As' option on the in game screen.

Mount and blade warband multiplayer keeps crashing