Hi @Beqa Parjanadze
Welcome to the community.
Please reach out to the marketplace vendor, they can assist you on this.
It might be a configuration issue a their end, regarding your instance.
https://support.smartbear.com/zephyr-scale/message/
Thanks for the feedback. Every app says the same when trying to install any app
Then contact Atlassian Support and have them check your instance.
Have you tried the QMetry Test Management Jira App (QTM4J)? Let me know if you have any issues with that.
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