Display won't load pages. Web GUI won't load - only when display connected to HASP PCB

[rkhanso]

https://gist.github.com/rkhanso/294fe54d5897e3624b810516dc160170

I'm having trouble with the HASPone switchplate. It was working OK for over a year. Recently became stuck on displaying only "HASP initializing" and even when powering off/on the circuit breaker to reboot it, still saying that.

Removed it from the wall and took the ESP8266 out and connected it directly to my PC through a USB cable. Then the Web interface of it worked OK. I could see debugging logs in a WiFi telnet session to the 8266. I put the ESP8266 on the HASPOne PCB, but without the display connected. The web Gui was still working. I can still see telnet logs.
I connected the Display to the HASP PCB and started to see some of the buttons show up, but really slowly. Not all of them showed up on the display. Then it stopped responding again.

Based on the logs in the Gist linked above, this looks like either a bad display and/or bad wiring between the display and HASP PCB, right?

Any other ideas? Thanks.

The HASP config:
plate01
WiFi SSID (required)
IOT

WiFi Password (required)
••••••••

HASPone Node Name (required. lowercase letters, numbers, and _ only)
plate01

Group Name (required)
plates

MQTT Broker (required, IP address is preferred)
192.168.10.100

MQTT Port (required)
1883

MQTT User (optional)
mqttuser

MQTT Password (optional)
••••••••

MQTT TLS enabled:
MQTT TLS Fingerpint (leave blank to disable fingerprint checking)
01:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F:10:11:12:13:14

Home Assistant discovery topic (required, should probably be "homeassistant"): homeassistant
Nextion project page count (required, probably "11"): 11
LCD Serial Speed: 921600
USB serial debug output enabled: (not checked)
Telnet debug output enabled: (checked)
mDNS enabled: (checked)
Motion Sensor Pin: disabled/not installed
Keypress beep enabled on D2: (not checked)
Ignore touchevents when backlight is off: (not checked)

MQTT Status: Connected
MQTT ClientID: plate01-bcff4d193588
HASPone FW Version: 1.05
LCD Model:
LCD FW Version: 0
LCD Active Page: 1
LCD Serial Speed: 921600
CPU Frequency: 160MHz
Sketch Size: 661728 bytes
Free Sketch Space: 2482176 bytes
Heap Free: 19272
Heap Fragmentation: 1
ESP core version: 3.0.2
IP Address: 192.168.10.133
Signal Strength: -78
Uptime: 9
Last reset: Power On

[rkhanso]

Here's another log I obtained from the device:
https://gist.github.com/rkhanso/35589d85a416f0a93465444847e2f38b