diff --git a/packages/core/src/handlers/base-handler.ts b/packages/core/src/handlers/base-handler.ts
index 28cd449b..b3ace37f 100644
--- a/packages/core/src/handlers/base-handler.ts
+++ b/packages/core/src/handlers/base-handler.ts
@@ -129,7 +129,7 @@ export abstract class BaseHandler<TFile extends UploadxFile>
   handle = (req: http.IncomingMessage, res: http.ServerResponse): void => this.upload(req, res);
 
   upload = (req: http.IncomingMessage, res: http.ServerResponse, next?: () => void): void => {
-    req.on('error', err => this.logger.error(`[request error]: %o`, err));
+    req.on('error', err => this.logger.error(`[request error]: %O`, err));
     this.cors.preflight(req, res);
     this.logger.debug(`[request]: %s %s`, req.method, req.url);
     const handler = this.registeredHandlers.get(req.method as string);
@@ -178,7 +178,7 @@ export abstract class BaseHandler<TFile extends UploadxFile>
         ]) as UploadxError;
         const errorEvent = { ...err, request: pick(req, ['headers', 'method', 'url']) };
         this.listenerCount('error') && this.emit('error', errorEvent);
-        this.logger.error('[error]: %o', errorEvent);
+        this.logger.error('[error]: %O', errorEvent);
         if ('aborted' in req && req['aborted']) return;
         return this.sendError(res, error);
       });
@@ -226,9 +226,9 @@ export abstract class BaseHandler<TFile extends UploadxFile>
   sendError(res: http.ServerResponse, error: Error): void {
     const httpError = isUploadxError(error)
       ? this._errorResponses[error.uploadxErrorCode]
-      : !isValidationError(error)
-      ? this.storage.normalizeError(error)
-      : error;
+      : isValidationError(error)
+      ? error
+      : this.storage.normalizeError(error);
     const response = this.storage.onError(httpError);
     this.send(res, response);
   }
diff --git a/packages/core/src/storages/disk-storage.ts b/packages/core/src/storages/disk-storage.ts
index 527358a4..59c358e9 100644
--- a/packages/core/src/storages/disk-storage.ts
+++ b/packages/core/src/storages/disk-storage.ts
@@ -66,7 +66,7 @@ export class DiskStorage extends BaseStorage<DiskFile> {
     }
     this.accessCheck().catch(err => {
       this.isReady = false;
-      this.logger.error('[error]: Could not write to directory: %o', err);
+      this.logger.error('[error]: Could not write to directory: %O', err);
     });
   }
 
diff --git a/packages/core/src/storages/local-meta-storage.ts b/packages/core/src/storages/local-meta-storage.ts
index 9961f011..90236602 100644
--- a/packages/core/src/storages/local-meta-storage.ts
+++ b/packages/core/src/storages/local-meta-storage.ts
@@ -21,7 +21,7 @@ export class LocalMetaStorage<T extends File = File> extends MetaStorage<T> {
     super(config);
     this.directory = (config?.directory || join(tmpdir(), 'uploadx_meta')).replace(/\\/g, '/');
     this.accessCheck().catch(err => {
-      this.logger.error('[error]: Could not write to directory: %o', err);
+      this.logger.error('[error]: Could not write to directory: %O', err);
     });
   }
 
diff --git a/packages/core/src/utils/logger.ts b/packages/core/src/utils/logger.ts
index 78d7401d..a87d2658 100644
--- a/packages/core/src/utils/logger.ts
+++ b/packages/core/src/utils/logger.ts
@@ -54,7 +54,7 @@ export class BasicLogger implements Logger {
 
   write = (data: unknown[], level: Exclude<LogLevel, 'none'>): void => {
     if (PriorityOf[level] >= PriorityOf[this._logLevel]) {
-      const message = formatWithOptions({ colors: true, depth: 1, maxStringLength: 80 }, ...data);
+      const message = formatWithOptions({ depth: 1, maxStringLength: 80 }, ...data);
       const timestamp = new Date().toISOString();
       this.logger[level](`${timestamp} ${level.toUpperCase()} ${this.label} ${message}`);
     }
@@ -77,4 +77,4 @@ export class BasicLogger implements Logger {
   }
 }
 
-export const logger = new BasicLogger({});
+export const logger = new BasicLogger();
diff --git a/packages/gcs/src/gcs-storage.ts b/packages/gcs/src/gcs-storage.ts
index fc0902bd..6f598f4d 100644
--- a/packages/gcs/src/gcs-storage.ts
+++ b/packages/gcs/src/gcs-storage.ts
@@ -124,7 +124,7 @@ export class GCStorage extends BaseStorage<GCSFile> {
 
     this.accessCheck().catch((err: ClientError) => {
       this.isReady = false;
-      this.logger.error('Unable to open bucket: %o', err);
+      this.logger.error('Unable to open bucket: %O', err);
     });
   }
 
@@ -230,7 +230,7 @@ export class GCStorage extends BaseStorage<GCSFile> {
         return range ? getRangeEnd(range) : 0;
       } else if (res.ok) {
         const data = (await res.json()) as Record<string, any>;
-        this.logger.debug('uploaded %o', data);
+        this.logger.debug('uploaded %O', data);
         return size;
       }
       const message = await res.text();
diff --git a/packages/s3/src/s3-storage.ts b/packages/s3/src/s3-storage.ts
index ac00e68a..3fd6de12 100644
--- a/packages/s3/src/s3-storage.ts
+++ b/packages/s3/src/s3-storage.ts
@@ -140,7 +140,7 @@ export class S3Storage extends BaseStorage<S3File> {
     }
     this.accessCheck().catch((err: AWSError) => {
       this.isReady = false;
-      this.logger.error('Unable to open bucket: %o', err);
+      this.logger.error('Unable to open bucket: %O', err);
     });
   }