Your filters do not work because the msgFilterRules.dat file, which contains your filters, could not be read. A new msgFilterRules.dat file will be created and a backup of the old file, called rulesbackup.dat, will be created in the same directory.
Imzizdig-inek ur iteddu ara acku afaylu msgFilterRules.dat, igebren imzizdigen-inek, ur yezmir ara ad yettwaɣaṛ. Afaylu maynut msgFilterRules.dat ad yettwarnu u aḥraz n ufaylu, s yisem rulesbackup.dat, ad yettwarnu deg iwen n ukaram.