Missing strings for translation

I have translated many plugins to German Language and now they are completed to 100%. But I could notice that many strings seem to be missing and they are still shown in english
For eg. in WPMUDEV Dashboard plugin

https://monosnap.com/file/zei15BzERYevlmCiILm5lKCzYEK8fy
https://monosnap.com/file/i8frYmD9gsi2lcWwzy5UbVOp1wIynS