Some users have problems error when trying to log into Moodle :

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A server error that affects your login session was detected. Please login again or restart your browser or even: Your session has timed out. Please log in again. End quote ============= ============= There are several solutions to this problem are:

• Check and make sure the "permissions" in moodle data / session -  configuration to 777.

• Check config.php , it must not have spaces or new lines at the end of the code. Repeat this on all files php moodle recent changes, such as course / lib.php.

• If the admin> server> session handling> "Cookie Prefix" enter something into Coocie prefixis different for each Moodle site, and should fix the problem with some sites on the same url.

• Test sessions server by running a test session at https://yourserver/moodle/lib/session-test.php .

• Also check the "phpinfo ();" if the session handeling it configured correctly or not.

• Verifies that the hard disk is not full.

In this case, the use of open source Moodle more attention in terms of its access permission to "disk space" on hosting in order to know the error of error that looks like the above explanation. To further complement can refer to the forum link for Moodle (please click). Good luck.