invalid characters detected in character description

Hey guys.

I'm trying to sell a character and I can't complete it because i get this message: Invalid characters detected in char description.

Here's the description: Very close to level 76(less than 1 bar)
Fully Rested
Dual spec. Feral and Restoration (pve). Leveling gear for both
225 Riding, slow fly mount
417 Herbalism and 341 inscription. Various northern herbs. 5 books of glyph mastery

Can someone kindly point out the invalid characters?

Much appreciated.

Now it says I'm not eligible >.>

I'm having same problem, someone helping would be appreciated!

I have the same problem!
Hello.I want to write today i want to sell my character here for coins and i put my information in description but when i click to create trade to put my character on trade i got this Invalid characters detected in character description.So i need your help how to fix this.Thank you for your understanding.

This happens when you use special characters, just don't use any special characters other than full stops, apostrophes etc