After changing the the front Glass

Your iPad is boot-looping. If it was working properly prior to you doing the repair, then I would double check your work by following this guide. Look for damaged flexes or connectors or any possible missing components on the circuit board next to the connectors that may have been accidentally pried off during the repair.

It’s also possible that the replacement digitizer is causing the issue. If the old one is still usable, you could connect it instead to see. If it is too damaged, then disconnect the digitizer and LCD and boot the iPad via a Lightning connector plugged into an iTunes enabled computer. If it boots properly into iTunes, then that would indicate a possible faulty replacement part.