@siema86 - Nothing to worry about, I inquired about this yesterday. It is just a warning about the ISAM format. Server loads fine regardless.
@marko94 - look in your /server/mangos folder. You will find a file labeled something like AHbotreadme. Inside you will see a couple of lines IN the database that need to be edited. (I had this same problem when I first started, and this is how I fixed it) Change the 0 in MIN Item to something like 200 and MAX to something like 500 on all (3) lines. Log in and you will see all the auction houses are populated, provided you followed the rest of the instructions on editing your mangosconf file also. Good luck
@CT - Im in full aggreeance(think that is a word) w/Grandpa John and his comments!