This is an example of the possibilities for updating Cryptshare manually.
1. contact our support and tell us which Cryptshare version is currently installed
2. the support team will provide you with the corresponding update package server-VERSION.zip
3.
From version 7.1.0, please use this command instead:
type=update
interactionRequired=true
4. create a backup of the current version 
5. stop the Cryptshare service
systemctl stop cryptshare (use rccryptshare stop up to and including v.7.1)
6. open the shell
7. change into the <Cryptshare installation> folder
cd /opt/cryptshare-3
8. change the permissions for java file (for the Linux systems only)
Permissions
chmod 755 tmp/update/jre/linux/bin/java
9. run the following command in order to install the update
Linux
tmp/update/jre/linux/bin/java -jar tmp/update/updater.jar
Windows
tmp\update\jre\windows\bin\java.exe -jar tmp\update\updater.jar
10. start the Cryptshare service again
systemctl start cryptshare (use rccryptshare start up to and including v.7.1)