Problem importing events

Hi i tried importing a large file with events and during the import it stops. The notification is receive is "import failed abruptly".
thought it was because of my document so i tried something else. I exported a single row from zoho and tried to import that event and the same error occured.

Would you be so kind to help me out?

i attached the file with the single event, you have to rename it to .csv

Kindest regards.