Here is the log file
[28-01-2022_21-55-59] [INFO] OpenXcom Version: Extended 7.4.4 (v2022-01-21)
[28-01-2022_21-55-59] [INFO] Platform: Linux
[28-01-2022_21-55-59] [INFO] Data folder is:
[28-01-2022_21-55-59] [INFO] Data search is:
[28-01-2022_21-55-59] [INFO] - /home/happyalien/.local/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/share/cinnamon2d/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/share/gnome/openxcom/
[28-01-2022_21-55-59] [INFO] - /home/happyalien/.local/share/flatpak/exports/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /var/lib/flatpak/exports/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/local/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/local/share/openxcom/
[28-01-2022_21-55-59] [INFO] - /usr/share/openxcom/
[28-01-2022_21-55-59] [INFO] - ./
[28-01-2022_21-55-59] [INFO] User folder is: ./user/
[28-01-2022_21-55-59] [INFO] Config folder is: /home/happyalien/.config/openxcom/
[28-01-2022_21-55-59] [INFO] Options loaded successfully.
[28-01-2022_21-55-59] [INFO] SDL initialized successfully.
[28-01-2022_21-56-00] [INFO] SDL_mixer initialized successfully.
[28-01-2022_21-56-00] [INFO] Attempted locale: C.UTF-8
[28-01-2022_21-56-00] [INFO] Detected locale: C.UTF-8
[28-01-2022_21-56-00] [INFO] Attempting to set display to 1366x710x8...
[28-01-2022_21-56-00] [INFO] Display set to 1366x710x8.
[28-01-2022_21-56-00] [INFO] Loading data...
[28-01-2022_21-56-00] [INFO] Scanning standard mods in ''...
[28-01-2022_21-56-00] [INFO] Scanning user mods in './user/'...
[28-01-2022_21-56-00] [ERROR] FileMap::mapExtResources(xcom2, TFTD): external resources not found.
[28-01-2022_21-56-00] [INFO] Active mods:
[28-01-2022_21-56-00] [INFO] - xcom1 v1.0
[28-01-2022_21-56-01] [INFO] Loading begins...
[28-01-2022_21-56-01] [INFO] Pre-loading rulesets...
[28-01-2022_21-56-01] [INFO] Loading vanilla resources...
[28-01-2022_21-56-02] [INFO] Loading rulesets...
[28-01-2022_21-56-02] [INFO] Loading rulesets done.
[28-01-2022_21-56-02] [INFO] Loading fonts... Font.dat
[28-01-2022_21-56-02] [INFO] Lazy loading: 1
[28-01-2022_21-56-02] [INFO] Loading custom palettes from ruleset...
[28-01-2022_21-56-02] [INFO] Making palette backups...
[28-01-2022_21-56-02] [INFO] After load.
[28-01-2022_21-56-02] [INFO] Loading ended.
[28-01-2022_21-56-02] [INFO] Data loaded successfully.
[28-01-2022_21-56-02] [INFO] Loading language...
[28-01-2022_21-56-02] [INFO] Language loaded successfully.
[28-01-2022_21-56-02] [INFO] OpenXcom started successfully!
[28-01-2022_21-56-02] [INFO] Playing flx, 320x200, 890 frames
[28-01-2022_21-56-02] [INFO] Using software scaling routine. For best results, try an OpenGL filter.
[28-01-2022_21-56-03] [INFO] SDL_mixer initialized successfully.
[28-01-2022_21-56-10] [INFO] SDL_mixer initialized successfully.
[28-01-2022_21-56-10] [INFO] Loading data...
[28-01-2022_21-56-10] [INFO] Scanning standard mods in ''...
[28-01-2022_21-56-10] [INFO] Scanning user mods in './user/'...
[28-01-2022_21-56-10] [ERROR] FileMap::mapExtResources(xcom2, TFTD): external resources not found.
[28-01-2022_21-56-10] [INFO] Active mods:
[28-01-2022_21-56-10] [INFO] - xcom1 v1.0
[28-01-2022_21-56-10] [INFO] - XCF-CyrNames vAzrael, 20/SEP/2019
[28-01-2022_21-56-12] [INFO] Loading begins...
[28-01-2022_21-56-12] [INFO] Pre-loading rulesets...
[28-01-2022_21-56-12] [INFO] Loading vanilla resources...
[28-01-2022_21-56-12] [INFO] Loading rulesets...
[28-01-2022_21-56-13] [INFO] Loading rulesets done.
[28-01-2022_21-56-13] [INFO] Loading fonts... Font.dat
[28-01-2022_21-56-13] [INFO] Lazy loading: 1
[28-01-2022_21-56-13] [INFO] Loading custom palettes from ruleset...
[28-01-2022_21-56-13] [INFO] Making palette backups...
[28-01-2022_21-56-13] [INFO] After load.
[28-01-2022_21-56-13] [ERROR] During linking rulesets of soldiers:
Error for 'STR_DOG': Soldier type is missing the default armor
Error for 'STR_HYBRID': Soldier type is missing the default armor
Error for 'STR_MUGGLE_AI': Soldier type is missing the default armor
Error for 'STR_RAT': Soldier type is missing the default armor