Problem whit Upgrade 1.1.10 to 1.1.14

I am making a server upgrade but I get this type of error.

[WARN]

autoinstaller::Common::doImscpBackup:
[ERROR]

iMSCP::Database::mysql::dumpdb: mysqldump: Got error: 1033: Incorrect
information in file: './imscp/admin.frm' when using LOCK TABLES
main::_backupDatabase: Unable to dump the imscp database
iMSCP::Debug::END: Exit code: 2
autoinstaller::Common::doImscpBackup: Unable to backup previous i-MSCP
installation

[ERROR]

main::setupAskDefaultAdmin: Error while executing query: Incorrect information
in file: './imscp/admin.frm'
iMSCP::Debug::END: Exit code: 1

how can I fix it?

Information server

Debian 3.2.51-1 x86_64 GNU/Linux -- Version 7.6
PHP 5.4.4-14+deb7u14 (cli) (built: Aug 21 2014 08:36:44)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
with the ionCube PHP Loader v4.4.4, Copyright (c) 2002-2013, by ionCube Ltd.

I thought it was an error derived from the script , I usually watch on google to solve any problems