boot – Ubuntu not starting after booting


My ubuntu was working perfectly
But one day the error came and staayed there
I googled everything but i cant
The problem.is it automatically booted in emergency mode and now not booting in default mode
Error after booting:

[ 1263437 Initramfs unpacking failed: Decoding failed 1275454 ] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf coun

ter.

Gave up waiting for suspend/resume device /dev/sda5: recovering journal

/dev/sda: clean, 235301/674624 files, 2391359/2688000 blocks 44134603 ] snd pci_acp3x 0000:04:00.5: Invalid ACP audio mode : 1 You are in emergency mode. After logging in, type “journalctl -xb” to view system logs, “systemctl reboot” to reboot, “systemctl default” or “exit” to boot into default mode. Press Enter for maintenance

After entering journalctl -xb
First red line:

11:05:26 flyingbeast kernel: Expanded resource Reserved due to conflict with PCI Bus 0000:00

Second red line:

_0 11:05:26 flyingbeast kernel: Initramfs unpacking failed: Decoding failed 10 11:05:26 flyingbeast kernel: fbcon: Taking over console 10 11:05:26 flyingbeast kernel: Freeing initrd memory: 48376K

10 11:05:26 flyingbeast kernel: pci 0000:00:00.2: can’t derive routing for PCI INT A 10
10 11:05:26 flyingbeast kernel: pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf counter.
11:05:26 flyingbeast kernel: pci 0000:00:00.2: PCI INT Ai not connected

Third red line :

flying beast kernel: platform eisa.0: EISA: Cannot allocate resource for mainboard flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 1

flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 2 flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 3 5 flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 4

5 flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 5

5 flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 6 5 flying beast kernel: platform eisa.0: Cannot allocate resource for EISA slot 7 6 flyingbeast kernel: platform eisa.0: Cannot allocate resource for EISA slot 8