Partition map failed because no slice were found

I have a problem with an external Seagate Barracuda LP, and for some reason it won't be read, it was almost full... I'm scared, It was working just fine yesterday, now if I try to connect it to my Macbook Pro will give me an error message saying that the disk is not readable! Is any data recoverable?

Here's some information from terminal, any help will be greatly appreciated! 🙂

Device Identifier: disk3

Device Node: /dev/disk3

Part of Whole: disk3

Device / Media Name: TrekStor DS maxi light 30 Media

Volume Name: Not applicable (no file system)

Mounted: Not applicable (no file system)

File System: None

Content (IOContent): GUID_partition_scheme

OS Can Be Installed: No

Media Type: Generic

Protocol: USB

SMART Status: Not Supported

Total Size: 2.0 TB (2000398934016 Bytes) (exactly 3907029168 512-Byte-Units)

Volume Free Space: Not applicable (no file system)

Device Block Size: 512 Bytes

Read-Only Media: No

Read-Only Volume: Not applicable (no file system)

Ejectable: Yes

Whole: Yes

Internal: No

OS 9 Drivers: No

Low Level Format: Not supported

Leos-MacBook-Pro:~ leo$ sudo gpt show disk3

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 65502

65536 41943040 1 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

42008576 3865020559

3907029135 32 Sec GPT table

3907029167 1 Sec GPT header