Thanks for sharing the exact message you’re receiving, @aumran_4600. That confirms that this was a school-managed Adobe account that has been deactivated.
Because the account is managed by your school, your school’s Adobe administrator will need to restore/reactivate your access first. The regular Adobe Customer Support link shown in that message is intended for individual support and isn’t the route for restoring access to an organization-managed school account. If your administrator needs assistance, they can work with Adobe through their organization’s support channels.
Once your account has been reactivated, there are different recovery methods depending on the Adobe product:
For your Lightroom photos and videos:
Lightroom is not supported by Student File Transfer. Once you can sign in to the school account again, use Lightroom Library Download to export your synced Lightroom originals:
https://adobe.ly/4rshWEO
Instructions are available here:
https://adobe.ly/4rxhMMs
For files from other supported Adobe applications, "Student File Transfer" can be used to copy supported cloud assets from your school account to a personal Adobe account. Supported products currently include Adobe Express, Photoshop, Illustrator, XD, Acrobat/DC, Fresco, InDesign, Aero, Firefly, and Premiere.
Student File Transfer instructions:
https://adobe.ly/4rrk1AM
You can also review which applications are and aren’t supported here:
https://adobe.ly/4rycjVR
So, in your case, the first important step is to contact your school’s Adobe administrator and ask them to temporarily reactivate your account so you can sign in and retrieve your content. After that, use Lightroom Library Download for Lightroom and Student File Transfer to transfer supported Adobe Cloud files from other applications.
One important clarification: when I refer to your school administrator, I specifically mean the person or team who administers your school’s Adobe organization through the Adobe Admin Console. A general school administrator or IT/help desk contact may not have access to or be familiar with the Adobe account management options involved here.
Please ask your school to connect you specifically with their Adobe administrator and request that they check whether your managed Adobe account can be temporarily reactivated so that you can retrieve your Lightroom content. If the Adobe administrator needs assistance with the account, they can contact the appropriate Adobe support team through the Admin Console.
I also want to set the right expectation about what Adobe Community or regular individual Customer Support can do here. A school-managed Adobe account is controlled by the organization that provisioned it. We cannot reactivate that managed account from the Community, grant you access to it, or retrieve and provide the organization’s cloud content on your behalf.
If your school’s Adobe administrator is able to restore your access, you can then use Lightroom Library Download for your Lightroom library and Student File Transfer for the other supported Adobe products, as described above.
If the school ultimately decides it cannot or will not restore access to the managed account, unfortunately, there isn’t a separate Community or individual support route that can override the organization’s account administration and grant you access to that account’s content.
I want to be clear about that distinction so I don’t send you through support channels that cannot resolve a school-managed account issue.
Best,
Anshul Saini