An error has occurred

When I selected 198 photos, I saw an error in the red line.
The error contents are as follows.
“Processing node went offline. This could be due to insufficient memory or a network error.”

Please help me with the solution.

webODM%E3%82%A8%E3%83%A9%E3%83%BC01

Is the node local? How much memory do you have on the machine? You may have killed the node with an out of memory issue.