Theme fails with hugo 0.80.0 and theme wowchemy (academic)

[programLyrique]

The webmonetization theme fails with hugo 0.80.0 and main theme wowchemy (former academic):

ERROR 2021/01/30 16:51:38 render of "page" failed: execute of template failed: template: publication/single.html:5:3: executing "publication/single.html" at <partial "site_head" .>: error calling partial: execute of template failed: template: partials/site_head.html:50:5: executing "partials/site_head.html" at <partial "functions/parse_theme" .>: error calling partial: "/var/folders/42/tlplcx456dbdlz9dkg5rx6ww0000gs/T/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-modules/[email protected]/layouts/partials/functions/parse_theme.html:4:41": execute of template failed: template: partials/functions/parse_theme.html:4:41: executing "partials/functions/parse_theme.html" at <lower>: error calling lower: unable to cast []interface {}{"minimal", "webmonetization"} of type []interface {} to string
ERROR 2021/01/30 16:51:38 render of "page" failed: execute of template failed: template: publication/single.html:5:3: executing "publication/single.html" at <partial "site_head" .>: error calling partial: execute of template failed: template: partials/site_head.html:50:5: executing "partials/site_head.html" at <partial "functions/parse_theme" .>: error calling partial: "/var/folders/42/tlplcx456dbdlz9dkg5rx6ww0000gs/T/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-modules/[email protected]/layouts/partials/functions/parse_theme.html:4:41": execute of template failed: template: partials/functions/parse_theme.html:4:41: executing "partials/functions/parse_theme.html" at <lower>: error calling lower: unable to cast []interface {}{"minimal", "webmonetization"} of type []interface {} to string
ERROR 2021/01/30 16:51:38 render of "page" failed: execute of template failed: template: project/single.html:5:3: executing "project/single.html" at <partial "site_head" .>: error calling partial: execute of template failed: template: partials/site_head.html:50:5: executing "partials/site_head.html" at <partial "functions/parse_theme" .>: error calling partial: "/var/folders/42/tlplcx456dbdlz9dkg5rx6ww0000gs/T/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-modules/[email protected]/layouts/partials/functions/parse_theme.html:4:41": execute of template failed: template: partials/functions/parse_theme.html:4:41: executing "partials/functions/parse_theme.html" at <lower>: error calling lower: unable to cast []interface {}{"minimal", "webmonetization"} of type []interface {} to string
ERROR 2021/01/30 16:51:38 render of "page" failed: execute of template failed: template: publication/single.html:5:3: executing "publication/single.html" at <partial "site_head" .>: error calling partial: execute of template failed: template: partials/site_head.html:50:5: executing "partials/site_head.html" at <partial "functions/parse_theme" .>: error calling partial: "/var/folders/42/tlplcx456dbdlz9dkg5rx6ww0000gs/T/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-modules/[email protected]/layouts/partials/functions/parse_theme.html:4:41": execute of template failed: template: partials/functions/parse_theme.html:4:41: executing "partials/functions/parse_theme.html" at <lower>: error calling lower: unable to cast []interface {}{"minimal", "webmonetization"} of type []interface {} to string
ERROR 2021/01/30 16:51:38 render of "page" failed: execute of template failed: template: publication/single.html:5:3: executing "publication/single.html" at <partial "site_head" .>: error calling partial: execute of template failed: template: partials/site_head.html:50:5: executing "partials/site_head.html" at <partial "functions/parse_theme" .>: error calling partial: "/var/folders/42/tlplcx456dbdlz9dkg5rx6ww0000gs/T/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-modules/[email protected]/layouts/partials/functions/parse_theme.html:4:41": execute of template failed: template: partials/functions/parse_theme.html:4:41: executing "partials/functions/parse_theme.html" at <lower>: error calling lower: unable to cast []interface {}{"minimal", "webmonetization"} of type []interface {} to string
ERROR 2021/01/30 16:51:38 failed to load data: failed to load data: "pqth/to/my/site/data/themes/webmonetization/LICENSE:1:1": unmarshal of format "" is not supported