Error upgrading from centos7

Hello, I am trying to upgrade from centos7 in a VPS. Is that possible? I am following the instructions and got this error:

==> Processing phase `configuration_phase`
====> * ipu_workflow_config
        IPU workflow config actor
==> Processing phase `FactsCollection`
====> * vendor_repositories_mapping
        Scan the vendor repository mapping files and provide the data to other actors.
====> * system_facts
        Provides data about many facts from system.
Process Process-248:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 75, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/actors/__init__.py", line 296, in run
    self.process(*args)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/systemfacts/actor.py", line 65, in process
    bios_grubcfg_details = systemfacts.get_bios_grubcfg_details()
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/systemfacts/libraries/systemfacts.py", line 352, in get_bios_grubcfg_details
    with open('/boot/grub2/grub.cfg') as fo:
IOError: [Errno 2] No such file or directory: '/boot/grub2/grub.cfg'
2025-01-05 20:42:17.58  ERROR    PID: 7392 leapp.workflow.FactsCollection: Actor system_facts has crashed: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 75, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/actors/__init__.py", line 296, in run
    self.process(*args)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/systemfacts/actor.py", line 65, in process
    bios_grubcfg_details = systemfacts.get_bios_grubcfg_details()
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/systemfacts/libraries/systemfacts.py", line 352, in get_bios_grubcfg_details
    with open('/boot/grub2/grub.cfg') as fo:
IOError: [Errno 2] No such file or directory: '/boot/grub2/grub.cfg'



=============================================================================================
Actor system_facts unexpectedly terminated with exit code: 1 - Please check the above details
=============================================================================================

Debug output written to /var/log/leapp/leapp-preupgrade.log

============================================================
                      REPORT OVERVIEW                       
============================================================

Upgrade has been inhibited due to the following problems:
    1. File "/etc/default/grub" does not exist!

Reports summary:
    Errors:                      1
    Inhibitors:                  1
    HIGH severity reports:       0
    MEDIUM severity reports:     0
    LOW severity reports:        0
    INFO severity reports:       0

Before continuing, review the full report below for details about discovered problems and possible remediation instructions:
    A report has been generated at /var/log/leapp/leapp-report.txt
    A report has been generated at /var/log/leapp/leapp-report.json

============================================================
                   END OF REPORT OVERVIEW                   
============================================================

Answerfile has been generated at /var/log/leapp/answerfile

Unfortunately, it is not possible to use ELevate to upgrade the OS on all VPS systems, and it looks like you might be hosted on one that isn’t supported. Do you know what is doing that hosting? Have you tried asking your webhost about it?

It is at Hostinger. They said that I need to upgrade manually. The problem is with grub it seems. I will create a snapshot and try to upgrade. Hopefully it works automagically. Thanks