If you're getting an error, make sure you have all the plugins you're using updated.
If you still get the error, can you press F8 to open up the debug console.
From there, click the Console tab.
Then, can you copy and paste all the error messages you see here?
I downloaded the zip from your website right before I tested them, and I also double checked - the listed version numbers are the latest according to your changelog page.
I narrowed it down to Battle Engine Core 1.25e and Battle Status Window 1.02a being used together (without using any other plugins, only these two).
So, those two plugins gives me this error:
rpg_managers.js:1618 TypeError: Cannot read property 'width' of undefined
at Sprite_Actor.updateFrame (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/plugins/YEP_BattleEngineCore.js:2548:32)
at Sprite_Actor.Sprite_Battler.updateMain (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_sprites.js:512:14)
at Sprite_Actor.updateMain (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_sprites.js:748:41)
at Sprite_Actor.Sprite_Battler.update (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_sprites.js:493:14)
at Sprite_Actor.Sprite_Battler.update (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/plugins/YEP_BattleEngineCore.js:2298:38)
at Sprite_Actor.update (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_sprites.js:736:37)
at Sprite_Actor.update (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/plugins/YEP_BattleStatusWindow.js:270:36)
at file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_core.js:3290:19
at Array.forEach (native)
at Sprite.update (file:///C:/Users/someone/Documents/RPG%20Maker%20MV/project1/js/rpg_core.js:3288:19)
If I change Battle Engine Core to 1.25b it works again.