Hi Mayo Moriyama !
Thank you for answering, and help.
my version of WordPress : 4.2.2
eather using IE or Chrome.
Following your advice, i tried to change the theme. At least, it resolved the problem of disapperaed-subtitle which came back with switching back to chocolat theme. (thank you for that). I hope it will stay.
But the problem with not loading customizing page occured as well with the other theme i tried (adelle)
For now, it’s not a real problem because i don’t want to make any changes right now… but this is not normal, and i worry for new (and serious) problems
Thank you for reading !
