Thank you! That worked… It was trying to install php7.0-sqlite3 and my splynx is using 5.6… .Installed php5.6-sqlite3 and then the quickbooks addon and all is good!
Also, just so I know, when you sync customers with Quickbooks, does it sync past invoices and payments also? I set in params.php to use begin date of 2017-08-01 as start date for synce, as 7/20 was the last round of invoices I had manually entered into quickbooks. But it didn’t seem to sync the invoices from 8/20 and 9/20.
Keep up the good work! Thanks so much.