I just moved my wordpress from one place to another. I followed the steps in the Advanced Topics of the documentation on wordpress.org. The move was successful because the website displays properly, but unsuccessul in the sense that I can't log in to the wp-admin anymore. I get the following error message:
You do not have sufficient permissions to access this page.
This is strange as I previously had administrator rights. I tried creating a new user but the problem remains. I have found a few unofficial posts on the same error, but in only mildly similar cases, which I only half trust to try out. Can anybody help me, or guide me to a place where I might find ideas / help on the topic?