You may need to simply clear the cache on your browser. Here's the steps:
Chrome:
Open the Web Vault
Click on "View" > "Developer" > "Developer Tools"
Click on the "Application" tab > "Clear Storage" > then click on “clear site data”
Edge:
Clear Browsing data (Browsing history, Download History, Cookies and other Site Data, Cached Images and Files, Hosted App Data).
Firefox:
On Privacy & Security page > Clear Data, (Cookies and Site data, Cached Web Content)
Safari:
Go to Preferences > Advanced > select checkbox "Show Develop menu in menu bar"
Then select "Develop" > Empty Caches
Select "Safari" menu then "Clear History" and select All Time
iOS:
First please ensure that you're able to access your vault on the Keeper Desktop application or Keeper Web Vault. This step is critical, do not proceed until you have confirmed that your vault data is available on the desktop vault.
Go to the Settings app on your phone and scroll down until you see Keeper
Tap on Keeper the select the "Reset Keeper" option
Launch the Keeper app as usual and confirm the reset
Login to your Keeper vault as usual on the device.
Android:
First please ensure that you're able to access your vault on the Keeper Desktop application or Keeper Web Vault. This step is critical, do not proceed until you have confirmed that your vault data is available on the desktop vault.
Press and hold the Keeper icon and open the App preferences (each Android device is a little bit different)
Click on the buttons to clear local storage and reset the app.
Login to your Keeper vault as usual on the device.
Ensure that "clear site data when you quit Chrome" is disabled. This can cause errors and vault decryption issues.
Please contact Keeper Support.