system freeze [SOLVED]

System:
Kernel: 5.11.0-43-generic x86_64 bits: 64 compiler: N/A
Desktop: Moksha 0.3.4.17138 Distro: Ubuntu 20.04.3 LTS (Focal Fossa)
Machine:
Type: Desktop System: Acer product: Aspire R3610 v: N/A serial: <filter>
Mobo: Acer model: FMCP7A-ION-LE serial: <filter> BIOS: American Megatrends
v: P01-A4 date: 11/03/2009
CPU:
Topology: Dual Core model: Intel Atom 330 bits: 64 type: MT MCP
arch: Bonnell rev: 2 L2 cache: 512 KiB
flags: lm nx pae sse sse2 sse3 ssse3 bogomips: 12799
Speed: 1600 MHz min/max: N/A Core speeds (MHz): 1: 1600 2: 1600 3: 1600
4: 1600
Graphics:
Device-1: NVIDIA C79 [ION] vendor: Acer Incorporated ALI driver: nouveau
v: kernel bus ID: 03:00.0
Display: x11 server: X.Org 1.20.13 driver: modesetting
unloaded: fbdev,vesa resolution: 1920x1080i~60Hz
Message: Unable to show advanced data. Required tool glxinfo missing.
Audio:
Device-1: NVIDIA MCP79 High Definition Audio vendor: Acer Incorporated ALI
driver: snd_hda_intel v: kernel bus ID: 00:08.0
Sound Server: ALSA v: k5.11.0-43-generic
Network:
Device-1: NVIDIA MCP79 Ethernet vendor: Acer Incorporated ALI
driver: forcedeth v: kernel port: d080 bus ID: 00:0a.0
IF: enp0s10 state: down mac: <filter>
Device-2: Ralink RT3090 Wireless 802.11n 1T/1R PCIe vendor: Lite-On
driver: rt2800pci v: 2.3.0 port: ec00 bus ID: 05:00.0
IF: wlp5s0 state: up mac: <filter>
Device-3: TP-Link TL WN823N RTL8192EU type: USB driver: rtl8xxxu
bus ID: 1-3:4
IF: wlx28ee521c2c2f state: down mac: <filter>
Drives:
Local Storage: total: 931.51 GiB used: 7.79 GiB (0.8%)
ID-1: /dev/sda vendor: Toshiba model: MQ01ABD100 size: 931.51 GiB
Partition:
ID-1: / size: 915.40 GiB used: 7.79 GiB (0.9%) fs: ext4 dev: /dev/sda5
Sensors:
Missing: Required tool sensors not installed. Check --recommends
Info:
Processes: 159 Uptime: 1h 49m Memory: 2.67 GiB used: 863.3 MiB (31.6%)
Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17
inxi: 3.0.38
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