What does it mean when crawled page is shown bellow status progress ?

[payment141]

What does it mean when crawled page is shown bellow status progress ?
See attached picture. This is repeating many times and crawling is paused for infinite time.
Requires manual operation to continue.

[XML-Sitemaps Support]

Hello,

it looks like your server configuration doesn't allow to run the script long enough to create full sitemap. Please try to increase memory_limit and max_execution_time settings in php configuration at your host (php.ini file) or contact hosting support regarding this.