Credit Card input fields doesn’t appear after cache/minification

I tried to optimize my website and did the below changes:

• combined css and Js in line from Miscellaneous
• enabled Process html
• enabled Process Javascript files (Enable minification of JavaScript files, combine JS file) – with no files added to excluded from processing
• enabled Process CSS files (Enable minification of CSS files, combine JS file) – with no files added to excluded from processing
• I run preload function

After 2 days I saw that the credit input fields from checkout page disappeared.

I tried to:

• clear the cache,
• disable everything that I enabled
• remove the plugin,
• re-activate the plugin and enabled ‘Contain each included file in its own block?(enable if trying to isolate a JavaScript error introduced by minifying or merging).

Nothing helped. What should I do in this condition to be able to insert the credit cards details in order to pay a order?

Thank you!