When I tried to connect my speaker to Bluetooth it told me to forget this device and re pair it and now it he speaker won’t come up on my bluetooth

Pair a third-party Bluetooth accessory with your iPhone or iPad

On your device, go to Settings > Bluetooth and turn on Bluetooth. Stay on this screen until you complete the steps to pair your accessory.

If you can't connect a Bluetooth accessory to your iPhone or iPad

You can't connect any Bluetooth accessories to your device. The accessory manufacturer confirmed that your accessory is working correctly.

Set up and use Bluetooth accessories on iPhone

Pair a Bluetooth headphone, car kit, game controller, or another device · Follow the instructions that came with the device to put it in discovery mode. · On iPhone ...