[Closed] broken website

Hi and thanks for the extra details.

Issue number 1.

The [language] issue was most probably caused by you activating and running the Multilingual Tools Plugin. We have a warning on the plugin's documentation page that this should not be implemented on production sites.

This tool produces a duplicate of the original content appended with the language code and modifies any existing translations; therefore, you should never run it on production or client sites.

The options that you have now are the following.

A. Delete the second language and retranslate the site -> This is a good option if you do not have a lot of content.

B. Perform a DB operation to replace [language] with a blank string using some DB search and replace tool like this.
hidden link
This option requires some knowledge and understanding in DB and the tool that you are using. In any case, you better take a DB backup before doing that.

C. Restore your site from backup before you have used this tool and the problem started.
In this case, you will lose any content that you might have added after that restored backup.
EDIT: D. Please also see the solution that is suggested here (top yellow section).
https://wpml.org/forums/topic/custom-carousel/
Click on the Multilingual Tools > Settings. - Select the desired languages - Remove the "[%language_code%]" - Keep only the "%original_string%" on the template field - Click on the "Generate strings translations" button.

**** Important! Please make a full site backup (files and DB) before you proceed with those steps****

Issue number 2.
The theme and WPBakery issue.

Are you using this theme?
hidden link
Is it the default WPBakey slider that is missing for translation in the Translation Editor?

Issue number 3.
The language in directories error message.
When I check your site here hidden link it seems that languages in directories do work. Sometimes the message shows when actually it does work.
Please try to re-save the permalinks in Settings -> Permalinks and then re-save the setting for the Language URL format and see if the error disappears.

If you are going to need more help from me, then it is important for me to mention that we are communicating here in the translation support forum. This forum is intended for 'how to translate' issues to end users who are clients of our clients. If you have purchased WPML CMS package, then we'll be able to continue helping you with the issues that you are having on your site, if you open a ticket in our technical support forum here https://wpml.org/forums/forum/english-support/. Please open one ticket per issue.
Otherwise, from the information that I have here, our customer is the user @edwardh-9 which is the developer who developed for you this site (hidden link). I'm currently adding @edwardh-9 to the conversation here so he can better help you with the issues here. It can also be good if you contact him directly and send him the link to this ticket.

Best Regards,
Itamar.

Hi.

I've invited @edwardh-9 to join this conversation. He supposes to get an email about it.
You can mention it to him/her as well. If needed, he/she (as our client) will be able to open a ticket in our support forum.

Thanks,
Itamar.

Thanks, @edwardh-9.

Please open a ticket per issue. This way it will be easier for us to handle those issues.

Best Regards,
Itamar.