I think it might be an ownership problem...
Having a main directory permission of 755 with log files of 644 shouldn't be the cause.
Is "reforme" your account name on your server? were all the user and group ownerships set to "reforme" before, or did you change them?
If you were to create a test directory, called "test" would the user and group ownerships be "reforme" or something else?
Are you using a Linux server?