Plugin stopped working all of a sudden

This is the error in the logs

[14-Apr-2020 12:26:12 UTC] PHP Fatal error:  Class 'WpDataChartsGutenbergBlock' not found in D:inetpubwwwrootTheTrendSetwp-contentpluginswpdatatablescontrollerswdt_functions.php on line 744

The class it is complaining about is there. So I don't know what the problem is. It just stopped working very suddenly without me really touching anything

I just ended up commenting out the line with wtd_functions.php and it fixed things

function initGutenbergBlocks (){
    WpDataTablesGutenbergBlock::init();
    //WpDataChartsGutenbergBlock::init();
    add_filter( 'block_categories', 'addWpDataTablesBlockCategory', 10, 2);
}

So I am ok for now, but it is wierd...

Hi Alexander

I am on 2.8.1

Do I need to do anything in particular before I update the plugin? It shouldn't break anything, right?

Thanks once again, Lina