My MacBook Pro”13 A1502- 2014 keeps crashing

Uninstall Avast by following the developer's instructions. You can also turn off MalwareBytes' real-time system scanning option as well since it is unnecessary. Anti-virus apps, cleaning apps, and third party security software are not needed on a Mac and usually cause more problems than they solve since they interfere with the normal operation of macOS. If you suspect a malware or adware infection, then it is Ok to run MalwareBytes to scan the system, but you don't need any other apps (or even MalwareBytes beyond the single scan).

If after uninstalling Avast you still have the problem, then run EtreCheck and give it "Full Disk Access" so the report includes more details such as a summary of the system logs & kernel panics which may provide more clues. Post the report here using the "Additional Text" icon which looks like a piece of paper.

It never hurts to run the Apple Diagnostics to see if any hardware issues are detected.

LyleFromVegas wrote:

I think one of the basic issues is the warning that your disk drive is failing. When a drive is old it starts to have read/write problems that will cause it to crash. A 2014 computer means that your drive is 8 years old and is very likely failing as the warning you got stated.

We need to see the complete EtreCheck report to see about the SSD. The OP has/had anti-virus software installed that can affect the speed of the SSD so that "slow drive" may be due to software issues. It is too early to go to replacing hardware especially since this laptop is using a proprietary Apple SSD. Adding a third party SSD at this point is not warranted and may just confuse the diagnosis. Performing a file system check with First Aid and checking the health of the SSD with DriveDx would be the next options before spending money on an SSD. Plus resolving the software issues are the first priority, but the OP has not yet posted a new EtreCheck report after having uninstalled the anti-virus app. The OP may have other third party apps installed which is affecting performance & system stability.

If you still have issues after uninstalling Avast, then run EtreCheck again with "Full Disk Access" and post the newest report here using the "Additional Text" icon which looks like a piece of paper.

I think one of the basic issues is the warning that your disk drive is failing. When a drive is old it starts to have read/write problems that will cause it to crash. A 2014 computer means that your drive is 8 years old and is very likely failing as the warning you got stated.

Do a Time Machine backup, install a replacement disk drive (SSDs are cheap) and reinstall the OS. When the hard drive is failing that is the first thing to fix.

Only the text report of DriveDx is useful as it shows the complete health information of the SSD. The screenshots are only able to show snippets of the information and the summary page is not enough to evaluate an SSD. I really don't expect a problem with this SSD.

To share the EtreCheck report you need to click "Share Report" within the EtreCheck app to transfer the report to the clipboard with correct formatting, then in the forum editing window click on the "Additional Text" icon which looks like a piece of paper. Click within the text box that pops up and "Paste" the contents of the clipboard containing the report into "Additional Text" field.

I'm glad the earlier suggestions have helped with the issue.

The 2014 laptop has an SSD? That would have been helpful to know as most computers of this vintage are using SATA drives that are likely on their last legs. If the drive has been replaced with an SSD that would change my comments.

LyleFromVegas wrote:

The 2014 laptop has an SSD? That would have been helpful to know as most computers of this vintage are using SATA drives that are likely on their last legs. If the drive has been replaced with an SSD that would change my comments.

It was implied as it is a Retina model laptop which only supports a proprietary Apple SSD PCIe interface.

It was only the non-Retina model laptops (2012 & earlier) which supported 2.5" drives which could be either a hard drive or SSD.

Edit: You can use MacTracker or EveryMac.com to get system specifications for various Apple hardware.