Today I can't log in to my web site (www.itfgalaxytool.org/galaxytool/)
I get an error on the log in page, which is the front end of the website stating:
Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0
Going into my control panel and checking stats, I see a warning:
Disk /dev/sda6 (/tmp) 100 %

I think I need some help on this. I have no idea what is causing this.
thank you!

Sorry. Fixed the link.
And, for whatever reasons, the site started working fine without my changing anything.
Huh!
Ube