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- How to fix error “Javax.crypto […] pad block corrupted” in Multilogin 6
How to fix error “Javax.crypto […] pad block corrupted” in Multilogin 6
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( Updated on March 11th, 2026 )
Updated on March 11th, 2026
⚠️ Still using Legacy Multilogin 6? You are missing the good stuff!
The new Multilogin lets you run browser profiles and Android cloud phones in one workspace – manage desktop and mobile accounts without extra tools or devices.
⚡ Want to join the migration queue? Download the latest Multilogin 6 version (scroll to the bottom of the page), open it and click “Migrate”.
- 🖥️ Better workspace: Web interface • Desktop app • Dark mode • 2FA
- 🧑💻 Mobile + browser accounts together: Android cloud phones • Mimic and Stealthfox browsers
- 🌐 Faster setup: Profile and proxy templates • Extension manager
- 💾 Flexible profile storage: Local profiles • Cloud profiles • Storage converter
- ⚡ Productivity tools: Profile folders & tags • Column manager • Running profiles manager • Trash bin • Copy profile ID
- 🤖 Automation ready: API access in all plans • Selenium / Puppeteer / Playwright support • CLI tool • Script runner
👉 Curious what else changed? Read New Multilogin version: how is it different from Multilogin 6.
Seeing errors like the one below?
No need to panic! These pop up when you reset your password using the “Forgot password” option. Here’s what’s happening and how to bounce back 🙌
What’s going on?
Your master password is the secret sauce that locks your session data (cookies, history, tabs, etc.). Resetting it with “Forgot password” breaks the connection, meaning that data stored on our server becomes inaccessible.
But don’t worry – you can still move forward!
- Remember your old password? Awesome! Contact support, and we’ll help you restore your profiles.
- Can’t recall it? Here’s how to keep going with minimal hassle ⬇️
Quick recovery steps
If you don’t remember your old password, your data is effectively locked. Unless you can recall the old password, there’s no way to access it. In this case, you can only take a few steps to partially resolve the issue and get back to work.
- Clone profiles in the unassigned group: these will keep your settings and proxy details, but cookies, history, and other session data will be lost
- Delete existing groups and profiles within: profiles in groups can’t be cloned and will cause encryption errors down the line
- Create fresh profiles and groups: build new profiles to replace the inaccessible ones
- Re-add team members: delete and re-invite team member to avoid encryption errors
How to avoid this in the future
To safely update your password, use the “Change password” feature under the “My account” tab. This keeps everything intact and avoids any hiccups.
Still need help? Our support team is ready to assist you! 😊
