Unable to instal any plugins as its saying "Application Installation is unavailable because another operation is running"

[Zohaib1]

In my personal instance If I try to install any plugin it's giving me the below error even though the mentioned plugin seems to be activated.

Instance Url : https://dev98308.service-now.com/ 

Please help.

[Pradeep Sharma · Accepted solution]

Great. Let me know if I have answered your question. If so, please mark my response as correct so that others with the same question in the future can find it quickly and that it gets removed from the Unanswered list.

- Pradeep Sharma