Hi Thiago Franklin, breathe, it’s just on 9am here in Australia and I responded here first as an e-mail notification is triggered on new topics. I am looking at your Support ticket now (and I can see it in the list of new ticket since last night).
In the interim to me replying to your Support ticket in the next 2 minutes can you try de-activating wp-easy-events-professional just for a minute and run an export, I expect the export will work but when you re-enable wp-easy-events-professional it will fail again due to the above conflict of the Spreadsheet vs PHPExcel Classes which can be resolved by asking the developer of wp-easy-events-professional to conditionally load their Classes instead of against all WordPress Administration screens. I will respond to your Support ticket in detail now 🙂
