In regards to the errors you are getting have you tried deleting the cache file or renaming the config folder to see if it helps to clear up any of the errors you are getting?
Here are links to posts that discuss the steps needed to do these, please first try the cache file and if that does not resolve the issues try the config folder.
.dat cache file:
showthread.php?t=1589
config
showpost.php?p=12293&postcount=2
Let us know if the errors persist.