Galaxy Note 5 suddenly stopped booting up and in recovery mode has dm-verity and failed to mount errors?

All of sudden when I was trying to use my note 5 (unroot), I noticed that it was powered off and I couldn't power it on with power button. Can you please tell me if there is a way I can recover data on my phone without losing them? I also have Google Authenticator which is connected to many accounts online, If I lose data I will lose everything! Here is what I tried so far: First thing I did was a soft reset ( power button + volume down) and the mobile turned on but unfortunately it kept looping on the Samsung logo screen. Then, I tried to go to recovery mode (power button + home button + volume up) and from there I tried "reboot system now", "wiping cache partition (which I hope it doesn't remove any data?)" and "Run graphics test: which failed with error no command and then wiping cached data" all of them without success. One thing I noticed in the bottom section of recovery mode there are these errors: ODIN MODE DOWNLOAD SPEED: FAST PRODUCT NAME: SM-N920C CA_ TYPE: CA_2 CURRENT BINARY: Samsung Official SYSTEM STATUS: Official FRP LOCK: ON Secure Download : Enabled KNOX WARRANTY VOID: 0 (0x0000) RP SWREV: B:5 K:0 S:1 Android Recovery samsung/nobleltejv/noblelte 7.0/NRD90M/N920CXXS5CRH1 user/release-keys No Support SINGLE-SKU Supported API: 3 dm-verity error... E: failed to mount /system (Invalid argument)