Frequent crashes: Dyld Error Message: Symbol not found: clock_gettim

My MacOS is Yosemite on MacBook Pro 15" (mid-2012 retina). Two days ago, I installed both Sierra and High Sierra on its VirtualBox as guest. While It was installing the Guest High Sierra inside VirualBox, I got the warning that "Startup Disk is full". I had only 300 MB free on my 373GB capacity. Then I moved many of my apps in the Application folder in another Drive ( non-SSD )! (Maybe that caused the problem.) Then, I had 25GB free space on my SSD.

I have already checked inside my MacBook and it is really clean however, I used dust spray to make it super clean! Last night, I was running Cubase AI by Yamaha's Steinberg.

My system started crashing after overheating, Now after say 2-10 minutes my computer crashes, specially when I use applications with high processing power.

For the moment, I have MacsFanControl and set the 4000 RPM for now till I write this. I got the crash logs I will explain below.

Before I take this to Apple Service, or applying Thermal paste, I would like to understand what this is?

Here is a portion of my crash log. Can any one can help please? I do greatly appreciate it.

Thank you very much.

CS

Process:       mysqld [104]

Path:         /usr/local/mysql-8.0.11-macos10.13-x86_64/bin/mysqld

Identifier:      mysqld

Version:       0

Code Type:      X86-64 (Native)

Parent Process:    launchd [1]

Responsible:     mysqld [104]

User ID:       74

Date/Time:      2018-12-10 00:12:00.581 -0500

OS Version:      Mac OS X 10.10.5 (14F2511)

Report Version:    11

——

Time Awake Since Boot: 4 seconds

Crashed Thread:    0 Dispatch queue: com.apple.main-thread

Exception Type:    EXC_BREAKPOINT (SIGTRAP)

Exception Codes:   0x0000000000000002, 0x0000000000000000

Dyld Error Message:

 Symbol not found: _clock_gettime

 Referenced from: /usr/local/mysql/bin/mysqld (which was built for Mac OS X 10.12)

 Expected in: /usr/lib/libSystem.B.dylib

…

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread

0 dyld             0x00007fff6978e075 dyld_fatal_error + 1

…

External Modification Summary:

 Calls made by other processes targeting this process:

  task_for_pid: 1

  thread_create: 0

  thread_set_state: 0

 Calls made by this process:

  task_for_pid: 0

  thread_create: 0

  thread_set_state: 0

 Calls made by all processes on this machine:

  task_for_pid: 117

  thread_create: 0

  thread_set_state: 0

…

VM Region Summary:

ReadOnly portion of Libraries: Total=144.7M resident=120.7M(83%) swapped_out_or_unallocated=24.0M(17%)

Writable regions: Total=85.8M written=4184K(5%) resident=5360K(6%) swapped_out=0K(0%) unallocated=80.6M(94%)

REGION TYPE           VIRTUAL

===========           =======

Kernel Alloc Once          4K

MALLOC              72.7M

MALLOC (admin)           32K

STACK GUARD            56.0M

Stack               8192K

VM_ALLOCATE             12K

__DATA              10.6M

__LINKEDIT            38.2M

__TEXT              106.6M

__UNICODE             552K

shared memory            4K

===========           =======

TOTAL              292.8M

Any help would be greatly appreciated.