reports view in adminFE shows up as blank, with javascript console error

i havent been able to view reports in my adminFE for....a long time. none of them render anymore. i think i deleted or deactivated an account associated with an open report and its been broken since, but its hard to say for sure since that was so long ago and ive put off filing this bug for too long

full javascript error:

errorLog.js:16 TypeError: Cannot read property 'length' of null
    at Report.vue?48eb:1
    at a.me [as _l] (vue.runtime.esm.js:2624)
    at a.<anonymous> (Report.vue?48eb:1)
    at a.t._render (vue.runtime.esm.js:3535)
    at a.hn.before (vue.runtime.esm.js:4041)
    at hn.get (vue.runtime.esm.js:4444)
    at hn.run (vue.runtime.esm.js:4519)
    at ln (vue.runtime.esm.js:4275)
    at Array.<anonymous> (vue.runtime.esm.js:1979)
    at Yt (vue.runtime.esm.js:1905) "render"
(anonymous) @ app.d2c3c6b3.js:1
(anonymous) @ vue.runtime.esm.js:8
Yt @ vue.runtime.esm.js:8
Promise.then (async)
Ht @ vue.runtime.esm.js:8
ee @ vue.runtime.esm.js:8
Vtdi.r.default.config.errorHandler @ app.d2c3c6b3.js:1
Wt @ vue.runtime.esm.js:8
Bt @ vue.runtime.esm.js:8
t._render @ vue.runtime.esm.js:8
hn.before @ vue.runtime.esm.js:8
hn.get @ vue.runtime.esm.js:8
hn.run @ vue.runtime.esm.js:8
ln @ vue.runtime.esm.js:8
(anonymous) @ vue.runtime.esm.js:8
Yt @ vue.runtime.esm.js:8
Promise.then (async)
Ht @ vue.runtime.esm.js:8
ee @ vue.runtime.esm.js:8
(anonymous) @ vue.runtime.esm.js:8
hn.update @ vue.runtime.esm.js:8
lt.notify @ vue.runtime.esm.js:8
set @ vue.runtime.esm.js:8
SET_REPORTS @ app.d2c3c6b3.js:1
(anonymous) @ vuex.esm.js:6
(anonymous) @ vuex.esm.js:6
(anonymous) @ vuex.esm.js:6
L2JU.f._withCommit @ vuex.esm.js:6
L2JU.f.commit @ vuex.esm.js:6
commit @ vuex.esm.js:6
(anonymous) @ app.d2c3c6b3.js:1
w @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
t.<computed> @ _iter-create.js:12
n @ js.cookie.js:164
u @ js.cookie.js:164
Promise.then (async)
n @ js.cookie.js:164
u @ js.cookie.js:164
(anonymous) @ js.cookie.js:164
(anonymous) @ js.cookie.js:164
(anonymous) @ app.d2c3c6b3.js:1
(anonymous) @ vuex.esm.js:6
L2JU.f.dispatch @ vuex.esm.js:6
dispatch @ vuex.esm.js:6
mounted @ chunk-e5cf.501d7902.js:1
zt @ vue.runtime.esm.js:8
en @ vue.runtime.esm.js:8
insert @ vue.runtime.esm.js:8
E @ vue.runtime.esm.js:8
(anonymous) @ vue.runtime.esm.js:8
t._update @ vue.runtime.esm.js:8
hn.before @ vue.runtime.esm.js:8
hn.get @ vue.runtime.esm.js:8
hn.run @ vue.runtime.esm.js:8
ln @ vue.runtime.esm.js:8
(anonymous) @ vue.runtime.esm.js:8
Yt @ vue.runtime.esm.js:8
Promise.then (async)
Ht @ vue.runtime.esm.js:8
ee @ vue.runtime.esm.js:8
(anonymous) @ vue.runtime.esm.js:8
hn.update @ vue.runtime.esm.js:8
lt.notify @ vue.runtime.esm.js:8
set @ vue.runtime.esm.js:8
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
gt.updateRoute @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
r @ _iter-create.js:12
r @ _iter-create.js:12
r @ _iter-create.js:12
pt @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
r @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
Promise.then (async)
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
dt @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
p @ _iter-create.js:12
r @ _iter-create.js:12
r @ _iter-create.js:12
r @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ app.d2c3c6b3.js:1
p @ _iter-create.js:12
r @ _iter-create.js:12
pt @ _iter-create.js:12
gt.confirmTransition @ _iter-create.js:12
gt.transitionTo @ _iter-create.js:12
e.replace @ _iter-create.js:12
(anonymous) @ _iter-create.js:12
(anonymous) @ app.d2c3c6b3.js:1
Promise.then (async)
(anonymous) @ app.d2c3c6b3.js:1
Promise.then (async)
(anonymous) @ app.d2c3c6b3.js:1
p @ _iter-create.js:12
r @ _iter-create.js:12
pt @ _iter-create.js:12
gt.confirmTransition @ _iter-create.js:12
gt.transitionTo @ _iter-create.js:12
Tt.init @ _iter-create.js:12
beforeCreate @ _iter-create.js:12
zt @ vue.runtime.esm.js:8
en @ vue.runtime.esm.js:8
t._init @ vue.runtime.esm.js:8
An @ vue.runtime.esm.js:8
Vtdi @ app.d2c3c6b3.js:1
f @ runtime.fa19e5d1.js:1
t @ runtime.fa19e5d1.js:1
n @ runtime.fa19e5d1.js:1
(anonymous) @ app.d2c3c6b3.js:1