MyBB Error

MyBB has generated a critical error and as a result cannot function correctly.
MyBB Said:

Error Code: install_directory
The install directory (install/) still exists on your server and is not locked. To access MyBB please either remove this directory or create an empty file in it called 'lock'.

Please try clicking the Refresh button in your web browser to see if this corrects this problem.
We apologise for any inconvenience.

MyBB 1.2.9