Octopi goes Offline but cotinues printing

What is the problem?
My octoprint server goes offline while I printing something, but the printer continues until ends the object.

What did you already try to solve it?
Try to turn off the "power management" from the raspberry

35_LI

Logs (octoprint.log, serial.log or output on terminal tab, browser error console ...)

https://pastebin.com/vEPmQj4m (I put in a "pastebin" because it was so long :S)

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ...)

Octoprint version: 1.3.11
Octopi version: 0.16.0
Printer: Anet A8
Firmware: Marlin 1.1.9
Browser: I tried Chrome, Mozilla, and Printoid APP in Android
Operating System: Windows 10
Power Supply for RB: 5V 2,5A
Raspberry model: 3B+

I configure the Router to give a static IP to the pi MAC address.
The Pi have a Fan to evite heating problems.

I search on internet, and this community, but the problem I found is Octoprint crash, but for me is not crashing, it continue printing.

I noticed recently that the first thing to crash is the control tab :confused: (webcam)
and later

I have seen that it only happens to me while printing, if it is at rest, it does not lose the connection.

Is your power supply a real power supply or a phone charger?

Yes, is a power supply, this one to be exactly: https://www.amazon.es/dp/B07MYZVWGG/ref=cm_sw_r_cp_apap_ScExhJT36aD79