Invalid index(1) in interface

Expression evaluation error:invalid index(1) for list:valid range is empty

load(
local!choices: {
{
name: "MML Request Report",
icon: "random"
},
{
name: "MML Confirmations Report",
icon: "play"
},
{
name: "Public Equity Request Report",
icon: "save"
},
{
name: "PE Confirmations Report",
icon: "play"
}
},
local!userChoices: {

if(
isusermemberofgroups(
loggedInUser(),
{
cons!DFXH_APP_ADMINISTRATORS,
cons!DFXH_MIDDLE_OFFICE,
cons!COMMON_APPIAN_LITE_SYSTEM_WIDE_GROUP_PLATFORM_ADMINISTRATORS,
cons!DFXH_FRONT_OFFICE,
cons!DFXH_VIEWER_USERS,
cons!DFXH_MML_PORTFOLIO_MANAGERS
}
),
local!choices[1],
{}
),
if(
isusermemberofgroups(
loggedInUser(),
{
cons!DFXH_APP_ADMINISTRATORS,
cons!DFXH_MIDDLE_OFFICE,
cons!COMMON_APPIAN_LITE_SYSTEM_WIDE_GROUP_PLATFORM_ADMINISTRATORS,
cons!DFXH_FRONT_OFFICE,
cons!DFXH_VIEWER_USERS,
cons!DFXH_MML_PORTFOLIO_MANAGERS
}
),
local!choices[2],
{}
),
if(
isusermemberofgroups(
loggedInUser(),
{
cons!DFXH_APP_ADMINISTRATORS,

cons!COMMON_APPIAN_LITE_SYSTEM_WIDE_GROUP_PLATFORM_ADMINISTRATORS,
cons!DFXH_PE_FX_MGMT,
cons!DFXH_VIEWER_USERS,
cons!DFXH_MML_PORTFOLIO_MANAGERS
}
),
local!choices[3],
{}
),
if(
isusermemberofgroups(
loggedInUser(),
{
cons!DFXH_APP_ADMINISTRATORS,

cons!COMMON_APPIAN_LITE_SYSTEM_WIDE_GROUP_PLATFORM_ADMINISTRATORS,
cons!DFXH_PE_FX_MGMT,
cons!DFXH_VIEWER_USERS,
cons!DFXH_MML_PORTFOLIO_MANAGERS
}
),
local!choices[4],
{}
)


},
local!selection: local!userChoices[1],
with(
{
a!columnsLayout(
columns: {
a!forEach(
items: local!userChoices,
expression: {
a!columnLayout(
contents: {
a!cardLayout(
marginBelow: "STANDARD",
style: if(
rule!APN_isBlank(
local!selection
),
"STANDARD",
if(
local!selection = fv!item,
"ACCENT",
"STANDARD"
)
),
height: "SHORT",
link: a!dynamicLink(
value: fv!item,
saveInto: local!selection
),
contents: {
a!richTextDisplayField(
align: "CENTER",
value: {
a!richTextIcon(
icon: fv!item.icon,
size: "LARGE",
color: "POSITIVE"
),
a!richTextItem(
text: char(
10
)
),
a!richTextItem(
text: char(
10
)
),
a!richTextItem(
text: fv!item.name,
size: "MEDIUM"
)
}
)
}
)
}
)
}
)
}
),
a!columnsLayout(
columns: {
a!columnLayout(
showWhen: not(
rule!APN_isBlank(
local!selection
)
),
contents: a!boxLayout(
label: local!selection.name,
style: "ACCENT",
contents: if(
local!selection = local!choices[1],
rule!DFXH_MMLSwapRoll_Report(),
if(
local!selection = local!choices[2],
rule!DFXH_MMLConfirmationsReport(),

if(
local!selection = local!choices[3],
rule!DFXH_PublicEquityRoll_Report(),
if(
local!selection = local!choices[4],

rule!DFXH_PEConfirmationsReport(),
{}
)

)

)
)
)
)
}
)
}
)
)