Apply this guide to your situation
This answer covers “Change PHP or install panel add-ons on a VPS”. Read it with the summary and confirm that the symptom and service match what you are experiencing. Available options can vary by plan and account setup.
- Before changing anything, note what you expected, what happened and roughly when. Check whether the issue affects one page or the whole service.
- Save the full error message and note recent changes. Hide passwords, access codes, personal data and keys before sharing screenshots or logs.
- If a step requires administrator access, restarting services or editing server files, stop if you do not administer that server. Send support the service name, error and checks you have already made.
Likely-cause and resolution matrix
Follow a branch only when evidence supports it. A symptom may have more than one cause; do not change layers by guesswork.
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Prerequisites
- Authorised service access and confirmation of the exact product/plan.
- A recent backup or export before changing data, storage or DNS.
Important warnings
- Paths and features vary by provider and plan. This documentation does not claim cPanel, Plesk, Titan or these external modules are integrated into Anayil Panel.
- Do not share passwords, private keys, tokens or personal data in screenshots or tickets.
Step-by-step walkthrough
1. Identify the product and preserve its current state
2. Follow the procedure with minimal changes
3. Verify the result before closing
Troubleshooting & Solutions
The selector changes, but the site uses another version or returns 500.
Root cause: CLI changed but not the web pool, an extension is missing or the add-on does not support that version.
Resolution: Roll back the affected pool, collect PHP-FPM and application logs, and validate sockets/extensions in staging. Restore the snapshot if add-on installation is incomplete.
Rollback and recovery plan
If verification fails, stop further changes, preserve logs and restore only a confirmed previous copy or value. For managed services, ask the provider to roll back the layer it owns.
Related runbooks in this category:
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