MediaWiki internal error.

Original exception: exception 'DBQueryError' with message 'A database error has occurred
Query: COMMIT
Function: Database::commit
Error: 2006 MySQL server has gone away (gmsql)
' in /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Database.php:844
Stack trace:
#0 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Database.php(799): Database->reportQueryError('MySQL server ha...', 2006, 'COMMIT', 'Database::commi...', false)
#1 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Database.php(2037): Database->query('COMMIT', 'Database::commi...')
#2 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Wiki.php(321): Database->commit()
#3 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Wiki.php(293): MediaWiki->doUpdates(Array)
#4 /var/www/www.encyclo-ecolo.com/releases/20181123142639/index.php(91): MediaWiki->finalCleanup(Array, Object(LoadBalancer), Object(OutputPage))
#5 {main}

Exception caught inside exception handler: exception 'DBUnexpectedError' with message 'Error in fetchObject(): MySQL server has gone away (gmsql)' in /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Database.php:973
Stack trace:
#0 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Database.php(2375): Database->fetchObject(false)
#1 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/LinkBatch.php(89): ResultWrapper->fetchObject()
#2 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/LinkBatch.php(68): LinkBatch->executeInto(Object(LinkCache))
#3 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Skin.php(205): LinkBatch->execute()
#4 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Skin.php(181): Skin->preloadExistence()
#5 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/SkinTemplate.php(101): Skin->initPage(Object(OutputPage))
#6 /var/www/www.encyclo-ecolo.com/releases/20181123142639/skins/consoglobe.php(40): SkinTemplate->initPage(Object(OutputPage))
#7 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/SkinTemplate.php(150): Skinconsoglobe->initPage(Object(OutputPage))
#8 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/OutputPage.php(724): SkinTemplate->outputPage(Object(OutputPage))
#9 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Exception.php(111): OutputPage->output()
#10 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Exception.php(134): MWException->reportHTML()
#11 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Exception.php(213): MWException->report()
#12 /var/www/www.encyclo-ecolo.com/releases/20181123142639/includes/Exception.php(247): wfReportException(Object(DBQueryError))
#13 [internal function]: wfExceptionHandler(Object(DBQueryError))
#14 {main}