How can i debug trouble requesting combined reports

Hi, good day.

I've experiencing a mistake when combined report is retrieved on modern web template.

Some weeks ago we've registered new device on Traccar (Teltonika FMC130). Today we've installed to a customer that device, and we've deleted past positions in DB (using query DELETE FROM tc_positions WHERE id < {position id from customer use begin} AND deviceid = {deviceid related to that device})

Now combined report returns error :

TypeError: Cannot read properties of undefined (reading 'latitude')
    at https :// site/static/js/main.1aa58fd5.js:178:3303
    at Array.map ()
    at https : // site/static/js/main.1aa58fd5.js:178:3225
    at Array.flatMap ()
    at cw (https :// site/static/js/main.1aa58fd5.js:178:3204)
    at Mo (https : // site/static/js/main.1aa58fd5.js:2:681543)
    at Ds (https : // site/static/js/main.1aa58fd5.js:2:693231)
    at Ml (https :// site/static/js/main.1aa58fd5.js:2:739539)
    at Sc (https :// site/static/js/main.1aa58fd5.js:2:727762)
    at yc (https :// site/static/js/main.1aa58fd5.js:2:727690)

All other reports (events, route, stops...) are generated correctly.

I'm aware that direct queries done in MySQL database are discouraged, as that could broke database structure and/or table connections.
I'm almost sure that this trouble is related with date of report, as i believe that after today all combined reports retrieved where report range have not date of today involved, will work normally.

I'm wondering how can i debug where comes the mistake, as if it could be a bug or not on combined report generation.

Thank you.

You removed old positions and that's what's probably causing this issue. Events are referencing the positions that don't exist.

Hi again.

Of course, i forgot the tc_events table.
There should be the inconsistence.

Thanks you so much.