After install i wrongly clicked on plugins update button. after that page not open. how can i resolve it

After install i wrongly clicked on plugins update button. after that page not open. how can i resolve it
The ojs.eresjournals.org page isn’t working

ojs.eresjournals.org is currently unable to handle this request.
HTTP ERROR 500

@ERES_JOURNALS

What did you install, OJS or a plugin? Which plugins update button did you click on?

Best,
Bozana

plugin, i forget plugin name
ojs.eresjournals.org (main page )is not working but
ojs.eresjournals.org/index.php/ijcn (Journal page) is working

thanks, now i rectify the problem. its working perfectely