diff --git a/config.go b/config.go
index b090b0a..c3aec6b 100644
--- a/config.go
+++ b/config.go
@@ -115,15 +115,13 @@ func createConfig() error {
 			ramDurationStr = strings.TrimSpace(ramDurationStr)
 			if ramDurationStr == "" {
 				config.RamCache.Duration = defaultConfig.RamCache.Duration
-				config.RamCacheEnabled = true
-			} else if ramDurationStr == "0h" {
-				config.RamCacheEnabled = false
+				config.RamCacheEnabled = defaultConfig.RamCacheEnabled
 			} else {
 				ramDuration, err := time.ParseDuration(ramDurationStr)
-				if err != nil {
+				if err != nil || ramDuration == 0 {
 					printWarn("Invalid duration, using default (6h).")
 					config.RamCache.Duration = defaultConfig.RamCache.Duration
-					config.RamCacheEnabled = true
+					config.RamCacheEnabled = defaultConfig.RamCacheEnabled
 				} else {
 					config.RamCache.Duration = ramDuration
 					config.RamCacheEnabled = true
@@ -151,18 +149,16 @@ func createConfig() error {
 			driveDurationStr = strings.TrimSpace(driveDurationStr)
 			if driveDurationStr == "" {
 				config.DriveCache.Duration = defaultConfig.DriveCache.Duration
-				config.DriveCacheEnabled = config.DriveCache.Duration > 0
-			} else if driveDurationStr == "0h" {
-				config.DriveCacheEnabled = false
+				config.DriveCacheEnabled = defaultConfig.DriveCacheEnabled
 			} else {
 				driveDuration, err := time.ParseDuration(driveDurationStr)
-				if err != nil {
-					printWarn("Invalid duration, using default (48h).")
+				if err != nil || driveDuration == 0 {
+					printErr("Invalid duration, using default (48h).")
 					config.DriveCache.Duration = defaultConfig.DriveCache.Duration
-					config.DriveCacheEnabled = config.DriveCache.Duration > 0
+					config.DriveCacheEnabled = defaultConfig.DriveCacheEnabled
 				} else {
 					config.DriveCache.Duration = driveDuration
-					config.DriveCacheEnabled = config.DriveCache.Duration > 0
+					config.DriveCacheEnabled = true
 				}
 			}
 
diff --git a/init.go b/init.go
index de6f1cb..0e86684 100644
--- a/init.go
+++ b/init.go
@@ -70,6 +70,14 @@ func main() {
 		printInfo("Node client is disabled.")
 	}
 
+	// Check if the cache directory exists when caching is enabled
+	if config.DriveCacheEnabled {
+		if _, err := os.Stat(config.DriveCache.Path); os.IsNotExist(err) {
+			printErr("Error: Drive cache is enabled, but cache directory '%s' does not exist.\n", config.DriveCache.Path)
+			os.Exit(1) // Exit with a non-zero status to indicate an error
+		}
+	}
+
 	// Start periodic cleanup of expired cache files
 	if config.DriveCacheEnabled {
 		go cleanExpiredCachedImages()