Drupal 7.x

Dear All

I'm retired and started designing websites for charities (as a hobby) which in turn has led me to accumulate 5 paying clients which brings in around £100 a month (in hosting fees) and an additional £100 a month in tweaks/changes. Over the 2 years I've done it, the mini-business has brought in just shy of £15,000 of design work.

I'm allowing my users to enter an article link/URL in a project/link field. A lot of the links are coming from social media. When they copy and paste a URL that they have followed from FB, for example, it has extended URL data attached to it.

Example:

https://www.article.com/some-article-name?facebook-url-data

Is there a way to have all extended url data "?facebook-url-data" removed upon saving the node so that the resulting URL is: 

I'm using drupal 7.59 for my website. Now, text box for username filed is missing in user login page. So, I can't login into my site.

"Create new account" tab is lost in user login page and under "Request new password" tab, "username or email address" text box is missing too.

Then, also missing text box in "contact us" form which is created by webform. Someone please help me. I'm waiting for reply and advice.

I am in need of some real help - there must have been an automatic update because the owner of the site and I are positive we were not in the site, and the site is down - i've spent days trying to figure it our, but I am sooooo not drupal literate!  
we have php 7.1, we have drupal 7.69,

Hello

I have a computed field for a user add or edit form. 

How can I check if the user is adding or editing the user, with php code? I need that the calculate composed field of user's form only when it is been added, but not when it's editing.

Thank

I had to delete a field and I got a PDO Exception, even though the field was deleted anyway.

A bit scared, I tried adding and deleting a simple "something" text field several times and the problem remains.

I tried to disable Autchache and Filecache, to go back to Drupal version 7.67 (now D 7.69/Php 7.0), but the problem remains.

The site works perfectly, but the problem remains.
What can it depend on?

Thanks to who can direct me to solve the problem