Unable to open mails in Moogle Mail.

Time: 1130PM GMT+8
Frequency: Once
World name: Tiamat
Character name: Freiz Jormungdr
NPC name: Delivery Moogle
Class/Level: Weaver/23
Area and coordinates: N/A

My mail inbox was overloaded and was given an error that I would'nt be able to receive any more mails if I did not open my existing ones. When I tried opening the existing ones, it did not open the mail no matter how I click on it.I tried rebooting the cilent,clearing my inventory slots and removing all the opened mail but it was to no avail.