Hello @ib1222, thanks for opening a support topic with us and for sharing the screenshots which are helpful. As this is a recent drop off in Analytics and I can see your are based in the European Economic Area (EEA), this could be due to the fact that you are using Site Kit and Google Ads is connected?or?an Ads conversion ID is placed by Google Analytics. Could you please first confirm if this is accurate?
If the above is accurate then you will need to update to the latest version of Site Kit and enable consent mode for your website.
If this isn’t the case then I am also happy to check your setup if you could please share your?Site Health information. You can?use this form?to share privately if preferred.??
You may also want to ask a question at the Analytics Help Center as we are limited on the support we can offer for Analytics but as mentioned above this could be consent mode related or I may be able to spot something in your setup so I’d be happy to check this all for you.