What the… Error: Exception: SQLSTATE[HY000] [1698] Access denied for user 'root'@'localhost' (in wire/core/WireDatabasePDO.php line 553)

#0 wire/core/WireDatabasePDO.php (553): PDO->__construct()
#1 wire/core/WireDatabasePDO.php (926): WireDatabasePDO->pdoWriter()
#2 wire/core/WireSaveableItems.php (219): WireDatabasePDO->prepare()
#3 wire/core/Wire.php (416): WireSaveableItems->___load()
#4 wire/core/WireHooks.php (968): Wire->_callMethod()
#5 wire/core/Wire.php (484): WireHooks->runHooks()
#6 wire/core/Fields.php (336): Wire->__call()
#7 wire/core/Fields.php (179): Fields->getWireArray()
#8 wire/core/ProcessWire.php (628): Fields->init()
#9 wire/core/ProcessWire.php (579): ProcessWire->initVar()
#10 wire/core/ProcessWire.php (316): ProcessWire->load()
#11 index.php (52): ProcessWire->__construct()
#12 {main}

This error message was shown because: site is in debug mode. ($config->debug = true; => site/config.php). Error has been logged.