Tmomatic custom post no longer indexed as Event Listing by google

Hi, I noticed a drastic drop in the impressions generated by my websitehere. I believe this is due to search engines no longer indexing the custom posts as Event Listing or Event Detail as shown in the attached sheet with a comparison of the last 7 days vs the same period of 2023. Do you have any idea why this might have happened and how to go back to the previous settings?