i also have this problem, im into 2022, playing wigan, i lose money like 7-10m a month, because of high salary... Even though i won UCL twice(runner up twice) and EPL 4 times(runner up twice), my sponsorship isnt that high enough for being the most reputable club.. But the thing that makes problem for money is my stadium.
Only at 32k capacity seats, and my tickets cost almost half the price of what Chelsea, Man U/C, RM... it sucks... I got 450m in the transfer budget and not planning to use it for the board to build a new stadium... After 10 seasons, my wage is only at 25k a week to help the finances.. my staffs also have very low wages..
I think my average ticket price is at 23 euros.