Class ‘PHPExcel_CachedObjectStorageFactory’ not found

Just installed the lite version and upon my first attempt to ‘Create a table linked to an existing data source ‘, which is a .csv file from my Media Library, I get the ‘site is experiencing technical difficulties’ error.

After enabling debug log, this is what it shows:

[30-Aug-2019 03:31:43 UTC] PHP Fatal error:  Uncaught Error: Class 'PHPExcel_CachedObjectStorageFactory' not found in /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/lib/phpExcel/PHPExcel/Worksheet.php:342
Stack trace:
#0 /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/lib/phpExcel/PHPExcel.php(371): PHPExcel_Worksheet->__construct(Object(PHPExcel))
#1 /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/lib/phpExcel/PHPExcel/Reader/CSV.php(232): PHPExcel->__construct()
#2 /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/source/class.wpdatatable.php(1333): PHPExcel_Reader_CSV->load('/home/ccarlv5/p...')
#3 /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/source/class.wpdatatable.php(1690): WPDataTable->excelBasedConstruct('/home/ccarlv5/p...', Array)
#4 /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/source/class.wdtconfigcontroller.php(447): WPDataTable->fillFromData(Object(stdClass), Array)
#5 /home/ccarlv5/public_ht in /home/ccarlv5/public_html/candidatemaps/wp-content/plugins/wpdatatables/lib/phpExcel/PHPExcel/Worksheet.php on line 342

Please advise.