I’m sorry you’re experiencing issues.
MetaSlider has been tested to work with WordPress v6.0.
The way you describe it is that it’s possible that one of your plugins is throwing a console error which is likely preventing MetaSlider’s script to run.
In order for you to isolate which plugin is causing the issue, please try to deactivate all your plugins except for MetaSlider and switch your theme temporarily to Twenty-Twenty One. If this fixes your MetaSlider issue, you can then try to activate all the plugins back one-by-one until you find which of the plugin is causing the conflict.