Based on what i checked on your site, you have around 500 pending emails, when I manually run that cron URL on the page, it will send out 20 emails, so you might not see any different when you execute that cron URL at that moment.

If previously you setup cronjob from this extension XTCronjob then i realised you did unpublished that cron task from this extension, this is why it doesn't send out the email automatically.

I already help you re-published that cron task again and set to automatically send out 40 emails per cronjob run (every 5 minutes) from your backend setting.

Can you wait for a while and see whether those pending email will automatically send out?

Keep us update if the issue still persists.

Thanks for your help.
But I tested email notification and it doesn' work.
I have receivied the old notifications but not the news.
And I don't know why ?
Create a task cron in my manager OVH is it the solution ?
But you did this operation two times and task cron disappears.......
Why? Is it OVH ?

Why Komento needs cron ? In the old version komento didn't use cron and it worked pefectly

Thanks to spend your time on my problem.

Actually you can decide whether you want to setup cronjob or not on your server, but I would strongly recommended our user setup cronjob on their server so when the cronjob kick in, then system only sent those pending email notification to your site user, if not it will cause some performance issue on your site.

I believe you did use this "Send E-mails On Page Load" setting in previously, what this does is when the user access one of the page which rendered Komento form, the system will perform sent out email immediately, but system unable to know which emails already sent out based on this multiple user access on the page, mean system will keep sent out the emails until some of the user will received multiple same email notifications, this is one of the known issue.

If your OVH manager can able to setup cronjob, then you have to consult with your webhosting provider what is the correct command to setup this on your OVH manager.