Try talking to him on Sundays. He is the only NPC that requires you to talk to him on a certain day to do anything.
Adding on to this, there is a weekly quest to collect Bright Crystals from the ice rufus reaper in Snowfield of the Ice Wizard. You can only receive the reward on Sundays, and he will not talk to you until you have cleared this quest. You may have accidentally triggered it without realizing.
is not about talkin to him another day... he wont do a shiet any day ._. he is just like clickin an random objet ....
Just give it a stab, cheesebut. Talk to him on a Sunday. It might work, or it might not. But at least we rule this out as an issue if it does not work.
Have you tried logging in from another computer and verify that it's not any issues with your game files?