Joomla Plugin: Help me with Javascript, Php and CSS - several small projects follwing each month -- 2

I have a open source table plugin: https://github.com/Theophilix/event-table-edit. I want to you to fix an issue: https://github.com/Theophilix/event-table-edit/issues/187. I would be happy to work with you on a regular basis, I can spend 75€ a month on bugfixes... (Budget: €50 - €75 EUR, Jobs: CSS, JavaScript, Joomla, MySQL, PHP)