Thanks, now I understand now.
And I tried to install jbolo chat extension in my locally and it work perfectly fine and jbolo extension only use this following table #__jbolo_xxx instead of #__acpush_users.
Regarding this error I can confirm not related with jbolo chat extension.
Table 'j8g3v5v7_ap3.#__acpush_users' doesn't exist SQL=SHOW FIELDS FROM `#__acpush_users`
Then I check further all of your existing plugin then i realised you have installed this api plugin located at ->
JoomFolder/plugins/api/.. which trigger this #__acpush_users based on what i see his code.
I've temporary renamed this to
JoomFolder/plugins/api_bak/.. , may i know do you still remember is it you still using this api plugin?
Actually what is the purpose of this plugin?
Can you try install back jbolo chat extension from your site and see this issue is it still persists?