The error message "Server error, please reload page", will occur if there is an issue on the page and the data cannot be saved.
In the case below, I have removed the gas constant (1) and tried to save (2), then the error message occurs (3). In this case, without the gas constant, psychrometic calculations cannot be made and as of such the system won't accept that the field be empty. As of such the server error message appears.
This is just an example, but if this error message appears, normally it will mean that the data you have entered/changed/removed if faulty and needs to be adapted.
In the case below, I have removed the gas constant (1) and tried to save (2), then the error message occurs (3). In this case, without the gas constant, psychrometic calculations cannot be made and as of such the system won't accept that the field be empty. As of such the server error message appears.
This is just an example, but if this error message appears, normally it will mean that the data you have entered/changed/removed if faulty and needs to be adapted.