All email and messages after 2 March disappeared

Good morning, I woke up this morning to the usual email notifications on my BlackBerry Motion. Opened hub and it showed "nothing to show" tried the individual accounts and all were blank.

Turned Wi-Fi off and back on, still the same. Hitting refresh had no effect. I've done restart, complete shutdown, wait and start and still no joy. In some cases only messages from this morning appeared. On other accounts messages from before 2 March 2021 are there. On one of my primary accounts, from 2 March until yesterday morning are gone.

Any suggestions more than welcome.

Gordon