Not again… Error: Exception: SQLSTATE[HY000] [2002] No such file or directory (in wire/core/WireDatabasePDO.php line 467)

#0 wire/core/WireDatabasePDO.php (467): PDO->__construct()
#1 wire/core/WireDatabasePDO.php (824): WireDatabasePDO->pdoWriter()
#2 wire/core/WireCache.php (277): WireDatabasePDO->prepare()
#3 wire/core/WireCache.php (151): WireCache->get()
#4 wire/core/ProcessWire.php (527): WireCache->preload()
#5 wire/core/ProcessWire.php (313): ProcessWire->load()
#6 index.php (52): ProcessWire->__construct()
#7 {main}

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