You are connected as 'root' with no password, which corresponds to the default MySQL privileged account. Your MySQL server is running with this default, is open to intrusion, and you really should fix this security hole by setting a password for user 'root'.
Warning in ./libraries/dbi/DBIMysqli.class.php#261
mysqli_query(): MySQL server has gone away
Backtrace
./libraries/dbi/DBIMysqli.class.php#261: mysqli_query(
object,
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
integer 0,
)
./libraries/DatabaseInterface.class.php#246: PMA_DBI_Mysqli->realQuery(
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
object,
integer 1,
)
./libraries/DatabaseInterface.class.php#1946: PMA_DatabaseInterface->tryQuery(
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
NULL,
integer 1,
boolean false,
)
./libraries/navigation/Nodes/Node.class.php#611: PMA_DatabaseInterface->fetchValue(string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ')
./libraries/navigation/NavigationTree.class.php#1431: Node->getPresence(
string 'databases',
string '',
)
./libraries/navigation/NavigationTree.class.php#840: PMA_NavigationTree->_getPageSelector(object)
./libraries/navigation/Navigation.class.php#44: PMA_NavigationTree->renderState()
./libraries/Header.class.php#433: PMA_Navigation->getDisplay()
./libraries/Response.class.php#263: PMA_Header->getDisplay()
./libraries/Response.class.php#276: PMA_Response->_getDisplay()
./libraries/Response.class.php#397: PMA_Response->_htmlResponse()
PMA_Response::response()
Warning in ./libraries/dbi/DBIMysqli.class.php#261
mysqli_query(): Error reading result set's header
Backtrace
./libraries/dbi/DBIMysqli.class.php#261: mysqli_query(
object,
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
integer 0,
)
./libraries/DatabaseInterface.class.php#246: PMA_DBI_Mysqli->realQuery(
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
object,
integer 1,
)
./libraries/DatabaseInterface.class.php#1946: PMA_DatabaseInterface->tryQuery(
string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ',
NULL,
integer 1,
boolean false,
)
./libraries/navigation/Nodes/Node.class.php#611: PMA_DatabaseInterface->fetchValue(string 'SELECT COUNT(*) FROM ( SELECT DISTINCT SUBSTRING_INDEX(SCHEMA_NAME, \'_\', 1) DB_first_level FROM INFORMATION_SCHEMA.SCHEMATA WHERE TRUE ) t ')
./libraries/navigation/NavigationTree.class.php#1431: Node->getPresence(
string 'databases',
string '',
)
./libraries/navigation/NavigationTree.class.php#840: PMA_NavigationTree->_getPageSelector(object)
./libraries/navigation/Navigation.class.php#44: PMA_NavigationTree->renderState()
./libraries/Header.class.php#433: PMA_Navigation->getDisplay()
./libraries/Response.class.php#263: PMA_Header->getDisplay()
./libraries/Response.class.php#276: PMA_Response->_getDisplay()
./libraries/Response.class.php#397: PMA_Response->_htmlResponse()
PMA_Response::response()