Our OJS 3 series error log file has swelled to 9.7 GB. how to reduce that size in our hosting?
Can you please indicate your specific OJS version (e.g. 3.2.1) ? Also, perhaps you may want to have a look at this post Error log file size growing - #4 by franeditor - to see if you are getting the same errors as that person (and if you are you may want to look at the solutions offered there). And, you may want to check your error log for any indication as to why it continues to grow (if you can share those details too, that might be helpful to be able to better identify the problem).