theres a lot of potential issues and sorting it out exactly will be difficult
organic is a thing on its own and the success of it being 100% organic relies on the original soil amending
when you built your soil did you add anything for micro nutes.. suck as azomite, rock dust, or at least kelp meal?
also your ph is very low so you would have need to add some lime to bring it up
but at this point its too late for all that