I’m afraid I’m unable to help with your issue. However, I’ll mention that such crashes might often be attributed to WINE or (particularly older) Nvidia graphics. In some cases lack of swap space, or free space generally, can be a factor.
Without more information it will be difficult to diagnose.
To begin with, please provide the expected system information as described (below) to allow others to identify possible contributors.
I’m sure someone will help when they are able.
Regards.
What follows is from a standard template.
Welcome to the Manjaro community
As a new or infrequent forum user, please take some time to familiarise yourself with Forum requirements, and the many ways to use the forum to your benefit.
To that end, links are provided (below) - Please use them.
Be prepared to provide outputs from various commands when asked. It’s equally important to provide as much actionable information as possible in your first post, rather than simply indicating there is a problem.
Waiting for others to blindly ask questions can be counter-productive – typically, nobody has a 
at their disposal – Instead, please help others to make informed suggestions, based on information you provide.
Update Announcements
The Update Announcements contain important information and a Known Issues and Solutions section that should generally be checked before posting a request for support.
System Information
While information from *-fetch type apps might be fine for someone wishing to buy your computer, for Support purposes it’s better to ask your system directly; 
Output of the inxi command (with appropriate parameters, and formatted according to forum guidelines) will generate information useful for those wishing to help:
The long-form command:
inxi --filter --verbosity=8
…or…
The short-form command:
inxi -zv8
- inxi man pages (Arch Manual)