I speedrun a very small game called aierlon in which there is only one moderator, he is almost completely inactive and i havent been able to get into contact with him for awhile now, would it be possible for me to recieve moderator on Aierlon?

The mod last logged on 6 days ago, so he isn’t inactive. Just keep waiting. Mods generally have 3 weeks to review runs.

Your account is two days old. You can't even send messages to people on spedrun.com yet. I doubt that you've been trying to contact them for "a while." Be patient and after 3 weeks have passed, reach out to them on youtube or discord and ask them to verify your run. If you don't get a response after one week, you can make a request to become moderator here: https://www.speedrun.com/knowledgebase/supporthub/request-moderation