This issue occurs if the following file is corrupt.
C:\Users\v-artxie\AppData\Roaming\Microsoft\Sticky Notes\StickyNotes.snt
You may remove this file. Then it will be recreated after you launch Sticky Notes the next time. However your old notes will be removed either after doing this task.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”