Pingbacks do not work

[ Moderator note: moved to Fixing WordPress. ]

Hey there!

Wordpress doesn’t send me any trackbacks or pingbacks notifications. My website is http://charlexs-world.com and one of my posts has been pinged a few days ago, but I didn’t receive anything to notify me. And I’m sure the pingback options are OK on the other blog as I asked them. Does anybody have an idea? Maybe a theme compatibility problem (I’m on the Travelify theme)?

Thanks for your answers!