Connection problem on one of our sites

Hi!
We have a problem on one of our sites. The connection does not work correctly to the application, allegedly the data from the site has not been received, but an order notification comes on the smartphone and it is fashionable to view the order and products, but if I log into the application and want to view all orders, then writes that the connection is an error. I attach the log. Previously, we had your old plugin, maybe the problem is because of it? How to completely delete all the plugin data and all its traces and reinstall or how to fix the error? I suggest you log from the application.

2021.11.06 20:04:26.429/ERROR/ipb/com.emagicone.network.rest.servers.store.components.NetworkException:
url: https://SITE.com/?connector=mobileassistant_new&call_function=get_dashboard
type: HTTP
reason: http
description: null
message: d2e: HTTP 500
at jh3.apply(:9)
at swb.onSuccess(Unknown Source:2)
at dxb.onSuccess(Unknown Source:2)
at dxb.onSuccess(Unknown Source:2)
at ewb.onComplete(Unknown Source:21)
at s3e.b(:6)
at dnb.a(Unknown Source:10)
at fwb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at exb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at exb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at twb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at iwb.onComplete(Unknown Source:11)
at xpb.u(Unknown Source:20)
at qmb.t(Unknown Source:10)
at jwb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at exb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at kxb.t(Unknown Source:9)
at tmb.r(Unknown Source:10)
at tmb.s(Unknown Source:6)
at ntb.onNext(Unknown Source:23)
at ptb.t(:3)
at tmb.r(Unknown Source:10)
at utb.o(Unknown Source:9)
at jnb.n(Unknown Source:10)
at swb.onSuccess(Unknown Source:28)
at wwb.o(Unknown Source:33)
at jnb.n(Unknown Source:10)
at twb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at zwb.o(Unknown Source:11)
at jnb.n(Unknown Source:10)
at vwb.u(Unknown Source:14)
at qmb.t(Unknown Source:10)
at uwb.onSuccess(Unknown Source:21)
at xwb.o(:2)
at jnb.n(Unknown Source:10)
at vwb.u(Unknown Source:14)
at qmb.t(Unknown Source:10)
at nqb.run(Unknown Source:4)
at gnb.run(Unknown Source:9)
at fyb.run(Unknown Source:13)
at fyb.call(Unknown Source:0)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:301)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:923)
Caused by: d2e: HTTP 500
... 53 more
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