TL;DR: Some "site building things" that are in Drupal 7 Features are not in the Drupal 7 site database, and therefore don't get migrated in a Drupal 7 to Drupal 8/9/10 upgrade.

Hello Team,

Hope you are doing well!!

I have update the my drupal website 7.88 to 10.1.1. It's all process using composer. But i have facing some issue in admin panel. 
I have checked the drupal version is upgrade or not. Using command line.

Using this command :: composer show drupal/core-recommended
Showing this message :: versions : * 10.1.1

In command line showing the drupal version is upgrade.

Whenever updating modules on an existing Drupal 7 site, I got lots of these error messages

Undefined index: php in system_requirements() (line 471 of xxxx/modules/system/system.install)

The code at that place reads

We haven't made any changes to our site in the last two years, but suddenly we're now getting the following error that's causing our site to 500:

"PHP Fatal error" "Call to undefined function _system_default_theme_features()"

We have this hosted on a VPS with Bluehost. They claim to have not made any system changes, and we certainly didn't do anything, so I'm not sure how it could start throwing errors like this, but perhaps some folks here might know?

Here's the entire error_log:

Hallo,

i have updated my system Drupal 7 and all modules. Now the Webform Emails do not show any values any more. The Tokens are empty inside of the Email. they are not replaced with the entered value. I have tried several tokens:

[submission:values]

[submission:values:first_name] 

[webform_submission:values]

I have checked the checkbox of "Allow tokens to be used in Webforms."

I have checked the List of the currently available tokens on this site. On the page admin/help/token there are no tokens with name "submission" shown.