Macbook Pro freezes and restarts

Hello everyone, I hope you can help me with my current problem.

I have Macbook pro (13 inch, mid 2012) MacOS Sierra (10.12.6) that has been working great over the past 5 years. Recently, my Macbook pro started freezing randomly including mouse, keyboard usually without flickering screen and restarting out of the blue without any warning or alert message afterwards (unlikely kernel panics?).

It seems these tend to happen more often when i physically my laptop and/or when i am running multiple programs (powerpoint, word, google chrome, safari..) simultaneously.

I have ran Full diagnostics while Holding "D" on reboot and showed no hardware/software issues. I also used Disk Utility on reboot to Erase hardware and download the most updated software.

This has not resolved my issue, however my macbook pro is currently much faster and smoother after erasing the hardware.

I was told that this might be related to overheating vs RAM issues vs Logic board ?

I have also ran Etrecheck reports and attached it to this message.

If i want to take it to an apple store so that they can fix the problem they will charge 475$ flat rate which is absurd. I would just buy a new laptop. Any help please?

EtreCheck version: 5.0.6 (5A017)

Report generated: 2018-10-20 13:33:31

Download EtreCheck from https://etrecheck.com

Runtime: 5:24

Performance: Below Average

Problem: Computer is restarting

Major Issues:

Anything that appears on this list needs immediate attention.

No Time Machine backup - Time Machine backup not found.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Upgradeable hard drive - This machine’s hard drive could be replaced with an SSD. This would dramatically improve your machine’s performance.

Upgradeable RAM - This machine has upgradeable RAM that would help its performance.

High battery cycle count - Your battery may be losing capacity.

Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.

Low performance - EtreCheck report took over 5 minutes to run. This is unusual.

32-bit Apps - This machine has 32-bits apps that may have problems in the future.

Abnormal shutdown - Your machine shut down abnormally.

Hardware Information:

MacBook Pro (13-inch, Mid 2012)

MacBook Pro Model: MacBookPro9,2

1 2.5 GHz Intel Core i5 (i5-3210M) CPU: 2-core

4 GB RAM - Upgradeable

BANK 0/DIMM0 - 2 GB DDR3 1600 ok

BANK 1/DIMM0 - 2 GB DDR3 1600 ok

Battery: Health = Normal - Cycle count = 883

Video Information:

Intel HD Graphics 4000 - VRAM: 1536 MB

Color LCD 1280 x 800

Drives:

disk0 - APPLE HDD HTS547550A9E384 500.11 GB (Mechanical - 5400 RPM)

Internal SATA 3 Gigabit Serial ATA

disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB

disk0s2 [Core Storage Container] 499.25 GB

disk1 - R**i (Journaled HFS+) 498.88 GB (28.77 GB used)

disk0s3 - Recovery HD (Journaled HFS+) [Recovery] 650 MB

Mounted Volumes:

disk1 - R**i 498.88 GB (469.84 GB free)

Journaled HFS+

Mount point: /

Encrypted

Network:

Interface en0: Ethernet

Interface en4: iPhone

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

Interface en3: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

iCloud Quota: 4.11 GB available

System Software:

macOS Sierra 10.12.6 (16G1510)

Time since boot: Less than an hour

Security:

Unsigned Files:

Launchd: /Library/LaunchAgents/com.citrix.AuthManager_Mac.plist

Executable: /usr/local/libexec/AuthManager_Mac.app/Contents/MacOS/AuthManager_Mac

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.citrix.ServiceRecords.plist

Executable: /usr/local/libexec/ServiceRecords.app/Contents/MacOS/ServiceRecords

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.citrix.ctxusbd.plist

Executable: /Library/Application Support/Citrix Receiver/ctxusbd

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.citrix.ReceiverHelper.plist

Executable: /usr/local/libexec/ReceiverHelper.app/Contents/MacOS/ReceiverHelper

Details: Exact match found in the whitelist - probably OK

32-bit Applications:

One 32-bit app

Kernel Extensions:

/Library/Application Support/Citrix Receiver

[Not Loaded] CitrixGUSB.kext (Citrix Systems, Inc., 12.4.0 - SDK 10.9)

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

iTunesHelper (Apple - installed 2018-10-04)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

iTunesHelper (Apple - installed 2018-10-04)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app/Contents/MacOS/iTunes Helper)

Internet Plug-ins:

QuickTime Plugin: 7.7.3 (installed 2018-10-04)

CitrixICAClientPlugIn: 12.4.0 (installed 2018-10-01)

Time Machine:

Time Machine Not Configured!

Performance:

System Load: 3.10 (1 min ago) 4.23 (5 min ago) 2.15 (15 min ago)

Nominal I/O speed: 8.26 MB/s

File system: 80.83 seconds

Write speed: 48 MB/s

Read speed: 70 MB/s

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Network Use:

Virtual Memory Information:

Software Installs (past 30 days):

Diagnostics Information (past 7 days):

2018-10-20 13:24:05 Last Shutdown Cause: -62 - System unresponsive

End of report