Interface error when organizer uploads speaker's image

[hpdang]

Describe the bug
Interface error when organizer uploads speaker's image

To Reproduce

• Event organizer goes to an existing session and adds additional speakers into the session e.g. https://eventyay.com/events/8fa7fd14/sessions/6275/edit
• Upload the speaker's photo

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu
• Browser: chrome

[HADES-01]

@hpdang I would love to work on this issue. Please assign it to me.