Can I submit two papers to the same conference event as me the first author?

Yes, unless the conference regulation specifies a different policy, it's fully OK to submit multiple papers as main author to the same conference.

If you haven't found anything in the conference regulations, the best solution is to contact the organizers directly and ask.

Since nothing is specified against it directly, you can try and submit two papers. However, keep in mind that they may nonetheless decide to disqualify the second submission (for example, if they simply did not think to add this rule to the submission guidelines, which can happen).