Little Big Planet Mash-Up Pack (Texture Pack) doesn't work & gives out errors

The LittleBigPlanet Mash-Up Texture Pack does not work, instead spitting out 8 errors even after the game & pack has been re-installed.

ui/hud_screen.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/inventory_screen_pocket.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/inventory_screen.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/pause_screen.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/play_screen.json:Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/realms_create.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/ui_template_buttons.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

ui/ui_common.json: Unable to parse UI JSON file with stack: * Line 1, Column 1
Syntax error: value, object or array expected.

Steps to reproduce: Install the LittleBigPlanet Mash-Up Pack on PlayStation 5; Enable the pack as a texture pack for a world/Global Resource pack; It will give 8 errors and will not work

Expected Result: The pack that I paid money for would work

Actual Result: The pack does not work & gives 8 errors instead