actually scenario is that in the main folder that is public_html, i have run one moodle for undergraduate students, in the same folder i have created my ownfolder for mba and i have put another moodle inside that folder.
now in this case there are two moodle instance are running one is for undergraduate that are accessing directly typing the url of our site and other is that is mba are used to access the moodle by tying the main path \mba
i have updated undergraduate moodle from 3.9 early version to 3.9 but this time while installing the moodle the minimum requirement are asking about php7.2 then i have opened the whm that is dedicated from bluehost and i have updated php7.1 to 7.2 and after that i restart the server
from the control panel otpion then i found that server is stuck and then i requested to agent of bluehost to restart the server and he took 5 to 10 minutes and restart the server. but after this my files are disturbed.
in the mba folder i have already installed moodle3.7 and it was running smoothly. but after this incident i find the same issue in the files.
as you mentioned goto the course and turnedit on and download
the file. while i am select the file then it shows the size of the file like 42mb and so on but while downloading it never shows any contents with file. please find the images.
one more thing, if i will upload
the file after this insicident then that file is accesible with the contents. but files uploaded this incident is not showing the contents as i have mentioned. please help me if you can