Freeze and black screen

In a couple hours I get multiple freeze and black screen with auto restart. Here is the error message. Can someone helps me, what start these problem please. Thank you.

panic(cpu 2 caller 0xffffff801362f89b): userspace watchdog timeout: no successful checkins from WindowServer (2 induced crashes) in 120 seconds

WindowServer has not exited since first loaded

service: logd, total successful checkins in 5914 seconds: 592, last successful checkin: 0 seconds ago

service: WindowServer (2 induced crashes), total successful checkins in 5880 seconds: 576, last successful checkin: 120 seconds ago

service: remoted, total successful checkins in 5914 seconds: 590, last successful checkin: 0 seconds ago

service: opendirectoryd, total successful checkins in 5914 seconds: 592, last successful checkin: 0 seconds ago

service: configd, total successful checkins in 5914 seconds: 592, last successful checkin: 0 seconds ago

Panicked task 0xffffff9047e1df38: 3 threads: pid 110: watchdogd

Backtrace (CPU 2), panicked thread: 0xffffff99df5200e0, Frame : Return Address

0xffffffec123c7500 : 0xffffff80107ebc91 

0xffffffec123c7550 : 0xffffff8010958a0c 

0xffffffec123c7590 : 0xffffff80109482b3 

0xffffffec123c7660 : 0xffffff8010781971 

0xffffffec123c7680 : 0xffffff80107ebf87 

0xffffffec123c7780 : 0xffffff80107eb622 

0xffffffec123c77f0 : 0xffffff8010fd41de 

0xffffffec123c78e0 : 0xffffff801362f89b 

0xffffffec123c78f0 : 0xffffff801362f356 

0xffffffec123c7910 : 0xffffff801362e421 

0xffffffec123c7a40 : 0xffffff8010f39fb6 

0xffffffec123c7a70 : 0xffffff8010f3a32d 

0xffffffec123c7be0 : 0xffffff80108ff8df 

0xffffffec123c7d00 : 0xffffff80107c8eb0 

0xffffffec123c7da0 : 0xffffff80107dc385 

0xffffffec123c7df0 : 0xffffff80107dca74 

0xffffffec123c7ee0 : 0xffffff801092cb7a 

0xffffffec123c7fa0 : 0xffffff8010781dd6 

   Kernel Extensions in backtrace:

     com.apple.driver.watchdog(1.0)[E2B50980-FE99-33C7-8EBF-4D0F2C67FBF7]@0xffffff801362d000->0xffffff801362ffff

Process name corresponding to current thread (0xffffff99df5200e0): watchdogd

Mac OS version:

24B91

Here I post complete error log: