App is giving error message "Disconnected from the server".

App runs in web browser and after some time start giving error of "Disconnected from the server"
and ask for Reload.
Please Help... Log file says as follow.....

2023-05-18T07:27:17.496139+00:00 shinyapps[9085549]: ✖ dplyr::lag()         masks stats::lag()
2023-05-18T07:27:17.496142+00:00 shinyapps[9085549]: ✖ dplyr::last()        masks data.table::last()
2023-05-18T07:27:17.496145+00:00 shinyapps[9085549]: ✖ lubridate::mday()    masks data.table::mday()
2023-05-18T07:27:17.496156+00:00 shinyapps[9085549]: ✖ lubridate::minute()  masks data.table::minute()
2023-05-18T07:27:17.496159+00:00 shinyapps[9085549]: ✖ lubridate::month()   masks data.table::month()
2023-05-18T07:27:17.496163+00:00 shinyapps[9085549]: ✖ lubridate::quarter() masks data.table::quarter()
2023-05-18T07:27:17.496166+00:00 shinyapps[9085549]: ✖ lubridate::second()  masks data.table::second()
2023-05-18T07:27:17.496169+00:00 shinyapps[9085549]: ✖ purrr::transpose()   masks data.table::transpose()
2023-05-18T07:27:17.496172+00:00 shinyapps[9085549]: ✖ lubridate::wday()    masks data.table::wday()
2023-05-18T07:27:17.496184+00:00 shinyapps[9085549]: ✖ lubridate::week()    masks data.table::week()
2023-05-18T07:27:17.496191+00:00 shinyapps[9085549]: ✖ lubridate::yday()    masks data.table::yday()
2023-05-18T07:27:17.496194+00:00 shinyapps[9085549]: ✖ lubridate::year()    masks data.table::year()
2023-05-18T07:27:17.496197+00:00 shinyapps[9085549]: ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors
2023-05-18T07:27:17.701874+00:00 shinyapps[9085549]: Attaching package: ‘dbplyr’
2023-05-18T07:27:17.702235+00:00 shinyapps[9085549]: The following objects are masked from ‘package:dplyr’:
2023-05-18T07:27:17.702277+00:00 shinyapps[9085549]:     ident, sql
2023-05-18T07:27:17.788421+00:00 shinyapps[9085549]: Attaching package: ‘plotly’
2023-05-18T07:27:17.788643+00:00 shinyapps[9085549]: The following object is masked from ‘package:ggplot2’:
2023-05-18T07:27:17.788677+00:00 shinyapps[9085549]:     last_plot
2023-05-18T07:27:17.788876+00:00 shinyapps[9085549]: The following object is masked from ‘package:stats’:
2023-05-18T07:27:17.788885+00:00 shinyapps[9085549]:     filter
2023-05-18T07:27:17.789116+00:00 shinyapps[9085549]: The following object is masked from ‘package:graphics’:
2023-05-18T07:27:17.789145+00:00 shinyapps[9085549]:     layout
2023-05-18T07:27:18.027540+00:00 shinyapps[9085549]: Registered S3 method overwritten by 'quantmod':
2023-05-18T07:27:18.027567+00:00 shinyapps[9085549]:   method            from
2023-05-18T07:27:18.027574+00:00 shinyapps[9085549]:   as.zoo.data.frame zoo 
2023-05-18T07:27:18.167190+00:00 shinyapps[9085549]: Loading required package: MASS
2023-05-18T07:27:18.186259+00:00 shinyapps[9085549]: Attaching package: ‘MASS’
2023-05-18T07:27:18.186502+00:00 shinyapps[9085549]: The following object is masked from ‘package:plotly’:
2023-05-18T07:27:18.186518+00:00 shinyapps[9085549]:     select
2023-05-18T07:27:18.186728+00:00 shinyapps[9085549]: The following object is masked from ‘package:dplyr’:
2023-05-18T07:27:18.186746+00:00 shinyapps[9085549]:     select
2023-05-18T07:27:18.187408+00:00 shinyapps[9085549]: Loading required package: strucchange
2023-05-18T07:27:18.189418+00:00 shinyapps[9085549]: Loading required package: zoo
2023-05-18T07:27:18.196405+00:00 shinyapps[9085549]: Attaching package: ‘zoo’
2023-05-18T07:27:18.196651+00:00 shinyapps[9085549]: The following objects are masked from ‘package:base’:
2023-05-18T07:27:18.196665+00:00 shinyapps[9085549]:     as.Date, as.Date.numeric
2023-05-18T07:27:18.197322+00:00 shinyapps[9085549]: Loading required package: sandwich
2023-05-18T07:27:18.218311+00:00 shinyapps[9085549]: Attaching package: ‘strucchange’
2023-05-18T07:27:18.218524+00:00 shinyapps[9085549]: The following object is masked from ‘package:stringr’:
2023-05-18T07:27:18.218542+00:00 shinyapps[9085549]:     boundary
2023-05-18T07:27:18.219292+00:00 shinyapps[9085549]: Loading required package: urca
2023-05-18T07:27:18.226358+00:00 shinyapps[9085549]: Loading required package: lmtest
2023-05-18T07:27:18.285960+00:00 shinyapps[9085549]: ── Attaching packages ────────────────────────────────────────────── fpp2 2.5 ──
2023-05-18T07:27:18.287582+00:00 shinyapps[9085549]: ✔ fma       2.5     ✔ expsmooth 2.3
2023-05-18T07:27:18.380365+00:00 shinyapps[9085549]: ── Conflicts ───────────────────────────────────────────────── fpp2_conflicts ──
2023-05-18T07:27:18.380394+00:00 shinyapps[9085549]: ✖ purrr::transpose() masks data.table::transpose()
2023-05-18T07:27:18.395587+00:00 shinyapps[9085549]: Attaching package: ‘rsconnect’
2023-05-18T07:27:18.395831+00:00 shinyapps[9085549]: The following object is masked from ‘package:shiny’:
2023-05-18T07:27:18.395862+00:00 shinyapps[9085549]:     serverInfo

Shiny apps automatically time out after a certain period of inactivity. This doesn't have to do with any sort of error on your part, but simply a timer. You can adjust this time limit by going to your dashboard on shinyapps.io and adjusting your app settings.

Hope this helps!

I am not able to find out the solution.

https://v3srmu-manishscis.shinyapps.io/CoSymple_R/

this is the app link please have a look. What has gone wrong